diff --git a/build.gradle b/build.gradle
index 401106ef7..30b3fbeb8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.1.1'
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.2'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:1.4.1'
     }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 442fdc5fa..08e8ae50e 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Fri Dec 15 09:15:44 CET 2017
+#Thu Apr 19 17:52:32 PDT 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
diff --git a/tess-two/build.gradle b/tess-two/build.gradle
index 5711b7efa..9a236281c 100644
--- a/tess-two/build.gradle
+++ b/tess-two/build.gradle
@@ -61,7 +61,7 @@ android {
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation "com.android.support:support-annotations:27.0.2"
+    implementation "com.android.support:support-annotations:27.1.1"
 }