diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e5e1ea01..4c63a02c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,44 +2,70 @@ name: CI
 
 on: ['push', 'pull_request']
 
+env:
+  PRIVATE_REPO: "${{ github.workspace }}/build/githubActionGrettyPrivateRepository"
+
 jobs:
-  build-and-test:
+
+  build:
+    name: Build Gretty
+    runs-on: ubuntu-latest
+
+    env:
+      JDK_VERSION: "17"
+      GRADLE_VERSION: "7.6.2"
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up JDK ${{ env.JDK_VERSION }}
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'zulu'
+          java-version: ${{ env.JDK_VERSION }}
+
+      - name: Build with Gradle ${{ env.GRADLE_VERSION }}
+        run: |
+          set -e
+          ./gradlew --no-daemon wrapper --gradle-version $GRADLE_VERSION --distribution-type all
+          ./gradlew --no-daemon --warning-mode all -PprivateRepoDir=$PRIVATE_REPO build
+          set +e
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: gretty-private-repository
+          path: ${{ env.PRIVATE_REPO }}
+
+  test:
     name: Gradle ${{ matrix.gradle }} on Java ${{ matrix.java }}
     runs-on: ubuntu-latest
+    needs: build
 
     strategy:
       matrix:
-        java: [11]
-        gradle: ['6.9.4']
         include:
+
           - java: 11
             gradle: '7.6.2'
-            properties: '-Pspock_version=2.3-groovy-3.0 -PgebVersion=5.1'
+
           - java: 17
             gradle: '7.6.2'
-            properties: '-Pspock_version=2.3-groovy-3.0 -PgebVersion=5.1'
+
+          - java: 17
+            gradle: '8.2.1'
 
     env:
-      TEST_ALL_CONTAINERS: "['tomcat10','jetty11']"
+      TEST_ALL_CONTAINERS: ${{ matrix.container }}
       GRADLE_VERSION: ${{ matrix.gradle }}
-      BINTRAY_REPO: maven
-      BINTRAY_PACKAGE: org.gretty
       EXTRA_PROPERTIES: ${{ matrix.properties }}
 
     steps:
       - uses: actions/checkout@v3
 
-      # Begin workaround: because the current Gradle wrapper does not support Java 17,
-      # we use JDK 15 to bootstrap the appropriate Gradle version, and then proceed
-      # to use a recent version of Gradle and Java.
-      - name: Set up JDK 15
-        uses: actions/setup-java@v3
+      - uses: actions/download-artifact@v3
         with:
-          distribution: 'zulu'
-          java-version: 15
-      - name: Bootstrap Gradle version
-        run: ./gradlew --no-daemon wrapper --gradle-version $GRADLE_VERSION --distribution-type all
-      # end workaround
+          name: gretty-private-repository
+          path: ${{ env.PRIVATE_REPO }}
 
       - name: Set up JDK ${{ matrix.java }}
         uses: actions/setup-java@v3
@@ -47,20 +73,27 @@ jobs:
           distribution: 'zulu'
           java-version: ${{ matrix.java }}
 
-      - name: Cache Gradle stuff
-        uses: actions/cache@v2
-        with:
-          path: |
-            ~/.gradle/wrapper
-            ~/.gradle/caches/modules-2
-          key: ${{ runner.os }}-build-${{ env.GRADLE_VERSION }}-${{ hashFiles('**/*.gradle', 'gradle.properties') }}
+      - name: Set up Gradle ${{ matrix.gradle }}
+        run: ./gradlew --no-daemon wrapper --gradle-version $GRADLE_VERSION --distribution-type all
 
-      - name: Build and Test
-        # ./gradlew --no-daemon wrapper --gradle-version $GRADLE_VERSION --distribution-type all
+      # begin workaround - see also integrationTests/buildSrc/build.gradle
+      - name: Install buildSrc project (only required for Gradle 8)
         run: |
-          set -e
-          ./gradlew --no-daemon --warning-mode all $EXTRA_PROPERTIES build
-          cd integrationTests
-          ../gradlew --no-daemon --warning-mode all $EXTRA_PROPERTIES -PgeckoDriverPlatform=linux64 -PtestAllContainers=$TEST_ALL_CONTAINERS testAll
-          cd ..
-          set +e
+          ../../gradlew --no-daemon \
+            --warning-mode all \
+            -PprivateRepoDir=$PRIVATE_REPO \
+            publishToPrivateRepo
+        if: "startsWith(env.GRADLE_VERSION, '8.')"
+        working-directory: integrationTests/buildSrc
+      # end workaround
+
+      - name: Run Integration Tests
+        run: |
+          ../gradlew --no-daemon \
+            --warning-mode all \
+            -PprivateRepoDir=$PRIVATE_REPO \
+            $EXTRA_PROPERTIES \
+            -PgeckoDriverPlatform=linux64 \
+            -PtestAllContainers=$TEST_ALL_CONTAINERS \
+            testAll
+        working-directory: integrationTests
diff --git a/.github/workflows/transition.yml b/.github/workflows/transition.yml
deleted file mode 100644
index 257e7578..00000000
--- a/.github/workflows/transition.yml
+++ /dev/null
@@ -1,46 +0,0 @@
-# #231 If we decide to drop Gradle 6 support / Groovy 2 support or upgrade minimum JDK requirements,
-# we might drop this build again.
-#
-# Extra one-off build for the transition from Gradle 6 to Gradle 7
-# Many things change under the hood: Gradle version, JDK version, Groovy version
-# In particular, we must ensure that Gretty built with
-#     Gradle 6, Groovy 2, Java 11
-# works well on
-#      Gradle 7, Groovy 3, Java 17
-
-name: the-great-divide
-
-on: ['pull_request', 'workflow_dispatch']
-
-jobs:
-  build-and-test:
-    name: Gradle Transition Build
-    runs-on: ubuntu-latest
-
-    env:
-      TEST_ALL_CONTAINERS: "['tomcat10','jetty11']"
-      GRADLE7_PROPERTIES: '-Pspock_version=2.1-groovy-3.0 -PgebVersion=5.1'
-
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Set up JDK 11
-        uses: actions/setup-java@v2
-        with:
-          distribution: 'zulu'
-          java-version: 11
-
-      - name: Build
-        run: ./gradlew --no-daemon --warning-mode all build
-
-      - name: Download Gradle 7
-        run: ./gradlew --no-daemon wrapper --gradle-version 7.5 --distribution-type all
-
-      - name: Set up JDK 17
-        uses: actions/setup-java@v2
-        with:
-          distribution: 'zulu'
-          java-version: 17
-
-      - name: Test
-        run: cd integrationTests && ../gradlew --no-daemon --warning-mode all $GRADLE7_PROPERTIES -PgeckoDriverPlatform=linux64 -PtestAllContainers=$TEST_ALL_CONTAINERS testAll
diff --git a/README.md b/README.md
index a795cc1a..daef9486 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,8 @@
 
 ![Build Status](https://github.com/gretty-gradle-plugin/gretty/workflows/CI/badge.svg)
 ![Maintenance Status](https://img.shields.io/maintenance/yes/2023.svg)
-[![Latest release](https://img.shields.io/badge/release-4.0.3-47b31f.svg)](https://github.com/gretty-gradle-plugin/gretty/tree/v4.0.3)
-[![Snapshot](https://img.shields.io/badge/current-4.0.4--SNAPSHOT-47b31f.svg)](https://github.com/gretty-gradle-plugin/gretty/tree/master)
+[![Latest release](https://img.shields.io/badge/release-4.1.0-47b31f.svg)](https://github.com/gretty-gradle-plugin/gretty/tree/v4.1.0)
+[![Snapshot](https://img.shields.io/badge/current-4.1.1--SNAPSHOT-47b31f.svg)](https://github.com/gretty-gradle-plugin/gretty/tree/master)
 [![License](https://img.shields.io/badge/license-MIT-47b31f.svg)](#copyright-and-license)
 
 Gretty is a feature-rich Gradle plugin for running web-apps on embedded servlet containers.
@@ -22,6 +22,15 @@ If you are new with Gretty, try [getting started](https://gretty-gradle-plugin.g
 
 #### :star: What's new
 
+### Version 4.1.0
+July 12, 2023, Gretty 4.1.0  is out and available at [Gradle Plugins](https://plugins.gradle.org/plugin/org.gretty) and [Maven Central](https://search.maven.org/artifact/org.gretty/gretty).
+
+* Drops Gradle 6 support
+
+* Enables stricter plugin validation
+
+* Adds Gradle 8 integration test build
+
 August 24, 2022, Gretty 4.0.3 is out and available at [Gradle Plugins](https://plugins.gradle.org/plugin/org.gretty) and [Maven Central](https://search.maven.org/artifact/org.gretty/gretty).
 
 * Changes in this version:
diff --git a/buildSrc/src/main/groovy/grettybuild.common.gradle b/buildSrc/src/main/groovy/grettybuild.common.gradle
index b3c6d786..2d9cfe5c 100644
--- a/buildSrc/src/main/groovy/grettybuild.common.gradle
+++ b/buildSrc/src/main/groovy/grettybuild.common.gradle
@@ -21,12 +21,12 @@ configurations {
 }
 
 task javadocJar(type: Jar) {
-    classifier = 'javadoc'
+    archiveClassifier.set('javadoc')
     from javadoc
 }
 
 task sourcesJar(type: Jar) {
-    classifier = 'sources'
+    archiveClassifier.set('sources')
     from sourceSets.main.allSource
 }
 
diff --git a/changes.md b/changes.md
index 11610320..99e8d603 100644
--- a/changes.md
+++ b/changes.md
@@ -2,6 +2,12 @@
 
 [![logo](https://gretty-gradle-plugin.github.io/gretty-doc/images/gretty_logo.png "gretty logo")](https://github.com/gretty-gradle-plugin/gretty)
 
+### Version 4.1.0
+
+* Drops Gradle 6 support
+* Enables stricter plugin validation
+* Adds Gradle 8 integration test build
+
 ### Version 4.0.3
 
 * Replace internal Gradle API usage with public API #263  
diff --git a/gradle.properties b/gradle.properties
index 5ef10133..3083656d 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -6,13 +6,13 @@ developerId = gretty-gradle-plugin
 developerName = Andrey Hihlovskiy
 license = MIT
 group = org.gretty
-version = 4.0.4-SNAPSHOT
+version = 4.1.0
 jetty11_version = 11.0.15
 jetty11_servlet_api_version = 5.0.0
 tomcat10_version = 10.1.10
 tomcat10_servlet_api_version = 5.0.0
 asm_version = 9.5
-spock_version = 1.3-groovy-2.5
+spock_version = 2.0-groovy-3.0
 commons_cli_version = 1.5.0
 commons_io_version = 2.13.0
 slf4j_version = 2.0.7
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index e708b1c0..afba1092 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 7c7bf44e..f707610b 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,7 +1,8 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-# We want to build releases with Gradle 6 so we support both Gradle 6 and 7:
+# We want to build releases with Gradle 7 so we support both Gradle 7 and 8:
 # https://github.com/gretty-gradle-plugin/gretty/pull/214#issuecomment-812289131
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.9.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.2-bin.zip
+networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index 4f906e0c..65dcd68d 100755
--- a/gradlew
+++ b/gradlew
@@ -1,7 +1,7 @@
-#!/usr/bin/env sh
+#!/bin/sh
 
 #
-# Copyright 2015 the original author or authors.
+# Copyright © 2015-2021 the original authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,67 +17,101 @@
 #
 
 ##############################################################################
-##
-##  Gradle start up script for UN*X
-##
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
 ##############################################################################
 
 # Attempt to set APP_HOME
+
 # Resolve links: $0 may be a link
-PRG="$0"
-# Need this for relative symlinks.
-while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
-        PRG="$link"
-    else
-        PRG=`dirname "$PRG"`"/$link"
-    fi
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
 done
-SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >/dev/null
-APP_HOME="`pwd -P`"
-cd "$SAVED" >/dev/null
 
-APP_NAME="Gradle"
-APP_BASE_NAME=`basename "$0"`
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
+MAX_FD=maximum
 
 warn () {
     echo "$*"
-}
+} >&2
 
 die () {
     echo
     echo "$*"
     echo
     exit 1
-}
+} >&2
 
 # OS specific support (must be 'true' or 'false').
 cygwin=false
 msys=false
 darwin=false
 nonstop=false
-case "`uname`" in
-  CYGWIN* )
-    cygwin=true
-    ;;
-  Darwin* )
-    darwin=true
-    ;;
-  MINGW* )
-    msys=true
-    ;;
-  NONSTOP* )
-    nonstop=true
-    ;;
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
 esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
@@ -87,9 +121,9 @@ CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
         # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD="$JAVA_HOME/jre/sh/java"
+        JAVACMD=$JAVA_HOME/jre/sh/java
     else
-        JAVACMD="$JAVA_HOME/bin/java"
+        JAVACMD=$JAVA_HOME/bin/java
     fi
     if [ ! -x "$JAVACMD" ] ; then
         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
@@ -98,7 +132,7 @@ Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
     fi
 else
-    JAVACMD="java"
+    JAVACMD=java
     which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
@@ -106,80 +140,105 @@ location of your Java installation."
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
-    MAX_FD_LIMIT=`ulimit -H -n`
-    if [ $? -eq 0 ] ; then
-        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
-            MAX_FD="$MAX_FD_LIMIT"
-        fi
-        ulimit -n $MAX_FD
-        if [ $? -ne 0 ] ; then
-            warn "Could not set maximum file descriptor limit: $MAX_FD"
-        fi
-    else
-        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
-    fi
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
 fi
 
-# For Darwin, add options to specify how the application appears in the dock
-if $darwin; then
-    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
-fi
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
 
 # For Cygwin or MSYS, switch paths to Windows format before running java
-if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
-    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
-    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
-
-    JAVACMD=`cygpath --unix "$JAVACMD"`
-
-    # We build the pattern for arguments to be converted via cygpath
-    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
-    SEP=""
-    for dir in $ROOTDIRSRAW ; do
-        ROOTDIRS="$ROOTDIRS$SEP$dir"
-        SEP="|"
-    done
-    OURCYGPATTERN="(^($ROOTDIRS))"
-    # Add a user-defined pattern to the cygpath arguments
-    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
-        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
-    fi
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
     # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    i=0
-    for arg in "$@" ; do
-        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
-        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
-
-        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
-            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
-        else
-            eval `echo args$i`="\"$arg\""
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
         fi
-        i=`expr $i + 1`
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
     done
-    case $i in
-        0) set -- ;;
-        1) set -- "$args0" ;;
-        2) set -- "$args0" "$args1" ;;
-        3) set -- "$args0" "$args1" "$args2" ;;
-        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
-    esac
 fi
 
-# Escape application args
-save () {
-    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
-    echo " "
-}
-APP_ARGS=`save "$@"`
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
 
-# Collect all arguments for the java command, following the shell quoting and substitution rules
-eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
 
 exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
index ac1b06f9..6689b85b 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -14,7 +14,7 @@
 @rem limitations under the License.
 @rem
 
-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -25,7 +25,8 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -40,7 +41,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if %ERRORLEVEL% equ 0 goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -75,13 +76,15 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 0 goto mainEnd
 
 :fail
 rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
 rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal
diff --git a/integrationTests/buildSrc/build.gradle b/integrationTests/buildSrc/build.gradle
index 6215ea67..4be90475 100644
--- a/integrationTests/buildSrc/build.gradle
+++ b/integrationTests/buildSrc/build.gradle
@@ -73,6 +73,12 @@ subprojects {
         mustRunAfter project.tasks.check
       }
 
+      // FIXME this task dependency became obsolete with Gradle 8,
+      //  because Gradle 8 no longer invokes the 'build' task on
+      //  buildSrc projects, just the task that assembles the output.
+      //  https://docs.gradle.org/8.0/release-notes.html#tests-for-buildsrc-are-no-longer-automatically-run
+      //  As a result, we miss the gretty-integrationTest JAR from
+      //  the private repo if we do not explicitly publish the JAR.
       project.build.dependsOn project.tasks.publishToPrivateRepository
 
     } // findPlugin java
diff --git a/integrationTests/buildSrc/gradle.properties b/integrationTests/buildSrc/gradle.properties
index 7b051e11..2d6fbd8d 100644
--- a/integrationTests/buildSrc/gradle.properties
+++ b/integrationTests/buildSrc/gradle.properties
@@ -3,7 +3,7 @@ geckoDriverVersion = 0.29.1
 geckoDriverPlatform = macos
 gradle_download_task_version = 3.4.3
 commons_configuration_version = 1.10
-gebVersion=2.3.1
+gebVersion=5.0
 seleniumVersion=3.141.59
 
 testAllContainers=
diff --git a/jitpack.yml b/jitpack.yml
index f9c4166a..855e3653 100644
--- a/jitpack.yml
+++ b/jitpack.yml
@@ -1,9 +1,9 @@
-# We want to build releases with Gradle 6 so we support both Gradle 6 and 7:
+# We want to build releases with Gradle 7 so we support both Gradle 7 and 8:
 # https://github.com/gretty-gradle-plugin/gretty/pull/214#issuecomment-812289131
 # And JitPack uses the Gradle Wrapper when building a new snapshot
 jdk:
   - openjdk11
 install:
   - java -version
-  - ./gradlew --no-daemon wrapper --gradle-version 6.9.4 --distribution-type all
-  - ./gradlew --no-daemon --warning-mode all --stacktrace -Pspock_version=1.3-groovy-2.5 -PgebVersion=2.3.1 publishToMavenLocal
+  - ./gradlew --no-daemon wrapper --gradle-version 7.6.2 --distribution-type all
+  - ./gradlew --no-daemon --warning-mode all --stacktrace publishToMavenLocal
diff --git a/libs/gretty/build.gradle b/libs/gretty/build.gradle
index e88c2dc5..5ac1ab82 100644
--- a/libs/gretty/build.gradle
+++ b/libs/gretty/build.gradle
@@ -34,18 +34,6 @@ pluginBundle {
 
 validatePlugins {
   enableStricterValidation = true
-  // FIXME #235 - Pass stricter validation since Gradle 7.2
-  // see PR #236 for the required changes
-  //
-  // We can't ship the improved plugin because passing the plugin validation requires
-  // adding an annotation which is not shipped with Gradle 6.9.
-  // As a result, we need to drop Gradle 6 compat, then add the annotation only present
-  // in Gradle 7.1 onwards, and then we can enable strict validation again.
-  //
-  // Unluckily, there is no way to selectively disable this validation for the Gradle 7
-  // build. Also, faking the presence of the annotation to get the plugin to compile with
-  // Gradle 6 would complicate the build process by a lot.
-  ignoreFailures = true
 }
 
 tasks.named('publishPlugins').configure {
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppAfterIntegrationTestTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppAfterIntegrationTestTask.groovy
index 04f9499a..cccdbec8 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppAfterIntegrationTestTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppAfterIntegrationTestTask.groovy
@@ -12,6 +12,7 @@ import groovy.transform.CompileStatic
 import groovy.transform.TypeCheckingMode
 import org.gradle.api.tasks.Internal
 import org.gradle.api.tasks.TaskAction
+import org.gradle.work.DisableCachingByDefault
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 
@@ -20,6 +21,7 @@ import org.slf4j.LoggerFactory
  * @author akhikhl
  */
 @CompileStatic(TypeCheckingMode.SKIP)
+@DisableCachingByDefault
 class AppAfterIntegrationTestTask extends AppStopTask {
 
   private static final Logger log = LoggerFactory.getLogger(AppAfterIntegrationTestTask)
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppBeforeIntegrationTestTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppBeforeIntegrationTestTask.groovy
index 88a717d7..96ebb72e 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppBeforeIntegrationTestTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppBeforeIntegrationTestTask.groovy
@@ -12,6 +12,7 @@ import groovy.transform.CompileStatic
 import groovy.transform.TypeCheckingMode
 import org.gradle.api.tasks.Internal
 import org.gradle.process.JavaForkOptions
+import org.gradle.work.DisableCachingByDefault
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 /**
@@ -19,6 +20,7 @@ import org.slf4j.LoggerFactory
  * @author akhikhl
  */
 @CompileStatic(TypeCheckingMode.SKIP)
+@DisableCachingByDefault
 class AppBeforeIntegrationTestTask extends AppStartTask {
 
   private static final Logger log = LoggerFactory.getLogger(AppBeforeIntegrationTestTask)
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppRedeployTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppRedeployTask.groovy
index 66957c15..e5ae0ca9 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppRedeployTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppRedeployTask.groovy
@@ -1,10 +1,12 @@
 package org.akhikhl.gretty
 
 import org.gradle.api.tasks.Internal
+import org.gradle.work.DisableCachingByDefault
 
 /**
  * @author sala
  */
+@DisableCachingByDefault
 class AppRedeployTask extends AppServiceTask {
   @Internal
   List webapps = []
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppRestartTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppRestartTask.groovy
index 42c897e9..58759e8b 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppRestartTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppRestartTask.groovy
@@ -8,10 +8,13 @@
  */
 package org.akhikhl.gretty
 
+import org.gradle.work.DisableCachingByDefault
+
 /**
  *
  * @author akhikhl
  */
+@DisableCachingByDefault
 class AppRestartTask extends AppServiceTask {
 
   String getCommand() {
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppServiceTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppServiceTask.groovy
index 51eb6d64..1eaf3448 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppServiceTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppServiceTask.groovy
@@ -14,6 +14,7 @@ import org.gradle.api.DefaultTask
 import org.gradle.api.GradleException
 import org.gradle.api.tasks.Internal
 import org.gradle.api.tasks.TaskAction
+import org.gradle.work.DisableCachingByDefault
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 
@@ -23,6 +24,7 @@ import org.slf4j.LoggerFactory
  * @author akhikhl
  */
 @CompileStatic(TypeCheckingMode.SKIP)
+@DisableCachingByDefault
 abstract class AppServiceTask extends DefaultTask {
 
   private static Logger log = LoggerFactory.getLogger(AppServiceTask)
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppStartTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppStartTask.groovy
index 48424096..b9f5cf7f 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppStartTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppStartTask.groovy
@@ -11,6 +11,7 @@ package org.akhikhl.gretty
 import groovy.transform.CompileStatic
 import groovy.transform.TypeCheckingMode
 import org.gradle.api.tasks.Internal
+import org.gradle.work.DisableCachingByDefault
 
 /**
  * Gradle task for starting jetty
@@ -18,6 +19,7 @@ import org.gradle.api.tasks.Internal
  * @author akhikhl
  */
 @CompileStatic(TypeCheckingMode.SKIP)
+@DisableCachingByDefault
 class AppStartTask extends StartBaseTask implements TaskWithServerConfig, TaskWithWebAppConfig {
 
   @Delegate
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppStopTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppStopTask.groovy
index 8b1b5bed..6e0adf1d 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppStopTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/AppStopTask.groovy
@@ -8,10 +8,13 @@
  */
 package org.akhikhl.gretty
 
+import org.gradle.work.DisableCachingByDefault
+
 /**
  *
  * @author akhikhl
  */
+@DisableCachingByDefault
 class AppStopTask extends AppServiceTask {
 
   String getCommand() {
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmAfterIntegrationTestTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmAfterIntegrationTestTask.groovy
index c3846728..d294e13d 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmAfterIntegrationTestTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmAfterIntegrationTestTask.groovy
@@ -13,6 +13,7 @@ import groovy.transform.TypeCheckingMode
 import org.gradle.api.Project
 import org.gradle.api.tasks.Internal
 import org.gradle.api.tasks.TaskAction
+import org.gradle.work.DisableCachingByDefault
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 
@@ -21,6 +22,7 @@ import org.slf4j.LoggerFactory
  * @author akhikhl
  */
 @CompileStatic(TypeCheckingMode.SKIP)
+@DisableCachingByDefault
 class FarmAfterIntegrationTestTask extends FarmStopTask {
 
   private static final Logger log = LoggerFactory.getLogger(FarmAfterIntegrationTestTask)
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmBeforeIntegrationTestTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmBeforeIntegrationTestTask.groovy
index afd5e943..52ae7748 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmBeforeIntegrationTestTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmBeforeIntegrationTestTask.groovy
@@ -13,6 +13,7 @@ import groovy.transform.TypeCheckingMode
 import org.gradle.api.Task
 import org.gradle.api.tasks.Internal
 import org.gradle.process.JavaForkOptions
+import org.gradle.work.DisableCachingByDefault
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 /**
@@ -20,6 +21,7 @@ import org.slf4j.LoggerFactory
  * @author akhikhl
  */
 @CompileStatic(TypeCheckingMode.SKIP)
+@DisableCachingByDefault
 class FarmBeforeIntegrationTestTask extends FarmStartTask {
 
   protected static final Logger log = LoggerFactory.getLogger(FarmBeforeIntegrationTestTask)
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmIntegrationTestTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmIntegrationTestTask.groovy
index 3ce63ab4..3218b81a 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmIntegrationTestTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmIntegrationTestTask.groovy
@@ -14,6 +14,7 @@ import org.gradle.api.DefaultTask
 import org.gradle.api.Project
 import org.gradle.api.tasks.Input
 import org.gradle.api.tasks.Internal
+import org.gradle.work.DisableCachingByDefault
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 
@@ -22,6 +23,7 @@ import org.slf4j.LoggerFactory
  * @author akhikhl
  */
 @CompileStatic(TypeCheckingMode.SKIP)
+@DisableCachingByDefault
 class FarmIntegrationTestTask extends DefaultTask {
 
   protected static final Logger log = LoggerFactory.getLogger(FarmIntegrationTestTask)
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmRestartTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmRestartTask.groovy
index 1c08f765..ae8624c9 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmRestartTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmRestartTask.groovy
@@ -8,10 +8,13 @@
  */
 package org.akhikhl.gretty
 
+import org.gradle.work.DisableCachingByDefault
+
 /**
  *
  * @author akhikhl
  */
+@DisableCachingByDefault
 class FarmRestartTask extends FarmServiceTask {
 
   @Override
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmServiceTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmServiceTask.groovy
index 0cdcd31c..d75d8af6 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmServiceTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmServiceTask.groovy
@@ -13,12 +13,14 @@ import org.gradle.api.GradleException
 import org.gradle.api.tasks.Input
 import org.gradle.api.tasks.Optional
 import org.gradle.api.tasks.TaskAction
+import org.gradle.work.DisableCachingByDefault
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 /**
  *
  * @author akhikhl
  */
+@DisableCachingByDefault
 abstract class FarmServiceTask extends DefaultTask {
 
   private static Logger log = LoggerFactory.getLogger(FarmServiceTask)
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmStartTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmStartTask.groovy
index d02d3242..1e0eec44 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmStartTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmStartTask.groovy
@@ -12,11 +12,13 @@ import org.gradle.api.Project
 import org.gradle.api.tasks.Input
 import org.gradle.api.tasks.Internal
 import org.gradle.api.tasks.Optional
+import org.gradle.work.DisableCachingByDefault
 
 /**
  *
  * @author akhikhl
  */
+@DisableCachingByDefault
 class FarmStartTask extends StartBaseTask implements TaskWithServerConfig {
 
   @Input
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmStopTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmStopTask.groovy
index 07e9d6c5..30944774 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmStopTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/FarmStopTask.groovy
@@ -8,10 +8,13 @@
  */
 package org.akhikhl.gretty
 
+import org.gradle.work.DisableCachingByDefault
+
 /**
  *
  * @author akhikhl
  */
+@DisableCachingByDefault
 class FarmStopTask extends FarmServiceTask {
 
   @Override
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/JettyStartTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/JettyStartTask.groovy
index 2d44e44a..97bbe852 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/JettyStartTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/JettyStartTask.groovy
@@ -8,10 +8,13 @@
  */
 package org.akhikhl.gretty
 
+import org.gradle.work.DisableCachingByDefault
+
 /**
  *
  * @author akhikhl
  */
+@DisableCachingByDefault
 class JettyStartTask extends AppStartTask {
 
   @Override
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/StartBaseTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/StartBaseTask.groovy
index d4d67d4b..b6e70c25 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/StartBaseTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/StartBaseTask.groovy
@@ -18,12 +18,14 @@ import org.gradle.api.tasks.Internal
 import org.gradle.api.tasks.TaskAction
 import org.gradle.process.JavaForkOptions
 import org.gradle.testing.jacoco.plugins.JacocoTaskExtension
+import org.gradle.work.DisableCachingByDefault
 /**
  * Base task for starting jetty
  *
  * @author akhikhl
  */
 @CompileStatic(TypeCheckingMode.SKIP)
+@DisableCachingByDefault
 abstract class StartBaseTask extends DefaultTask {
 
   @Internal
diff --git a/libs/gretty/src/main/groovy/org/akhikhl/gretty/TomcatStartTask.groovy b/libs/gretty/src/main/groovy/org/akhikhl/gretty/TomcatStartTask.groovy
index 1db546bf..776182b9 100644
--- a/libs/gretty/src/main/groovy/org/akhikhl/gretty/TomcatStartTask.groovy
+++ b/libs/gretty/src/main/groovy/org/akhikhl/gretty/TomcatStartTask.groovy
@@ -8,10 +8,13 @@
  */
 package org.akhikhl.gretty
 
+import org.gradle.work.DisableCachingByDefault
+
 /**
  *
  * @author akhikhl
  */
+@DisableCachingByDefault
 class TomcatStartTask extends AppStartTask {
 
   @Override
diff --git a/pluginScripts/gretty-4.1.0.plugin b/pluginScripts/gretty-4.1.0.plugin
new file mode 100644
index 00000000..4f0a8ec6
--- /dev/null
+++ b/pluginScripts/gretty-4.1.0.plugin
@@ -0,0 +1,16 @@
+buildscript {
+  repositories {
+    mavenCentral()
+  }
+
+  dependencies {
+    classpath 'org.gretty:gretty:4.1.0'
+  }
+}
+
+repositories {
+  mavenCentral()
+}
+
+if (!project.plugins.findPlugin(org.akhikhl.gretty.GrettyPlugin))
+  project.apply(plugin: org.akhikhl.gretty.GrettyPlugin)
diff --git a/pluginScripts/gretty-SNAPSHOT.plugin b/pluginScripts/gretty-SNAPSHOT.plugin
index e1968e66..8a4fbdec 100644
--- a/pluginScripts/gretty-SNAPSHOT.plugin
+++ b/pluginScripts/gretty-SNAPSHOT.plugin
@@ -5,7 +5,7 @@ buildscript {
   }
 
   dependencies {
-    classpath 'org.gretty:gretty:4.0.4-SNAPSHOT'
+    classpath 'org.gretty:gretty:4.1.1-SNAPSHOT'
   }
 }
 
diff --git a/pluginScripts/gretty.plugin b/pluginScripts/gretty.plugin
index 5659e086..4f0a8ec6 100644
--- a/pluginScripts/gretty.plugin
+++ b/pluginScripts/gretty.plugin
@@ -4,7 +4,7 @@ buildscript {
   }
 
   dependencies {
-    classpath 'org.gretty:gretty:4.0.3'
+    classpath 'org.gretty:gretty:4.1.0'
   }
 }