diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index 70092fe3..30ad55fa 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -38,7 +38,7 @@ jobs:
     uses: playframework/.github/.github/workflows/cmd.yml@v3
     with:
       java: 17, 11
-      scala: 2.13.x
+      scala: 2.13.x, 3.x
       cmd: sbt ++$MATRIX_SCALA test
 
   finish:
diff --git a/build.sbt b/build.sbt
index ba3bf3a9..5ac7488f 100644
--- a/build.sbt
+++ b/build.sbt
@@ -19,8 +19,15 @@ lazy val commonSettings = Seq(
   // Work around https://issues.scala-lang.org/browse/SI-9311
   scalacOptions ~= (_.filterNot(_ == "-Xfatal-warnings")),
   scalaVersion       := "2.13.11",               // scala213,
-  crossScalaVersions := Seq("2.13.11"),          // scala213,
-  pomExtra           := scala.xml.NodeSeq.Empty, // Can be removed when dropping interplay
+  crossScalaVersions := Seq("2.13.11", "3.3.0"), // scala213,
+  scalacOptions ++= {
+    if (scalaBinaryVersion.value == "3") {
+      Seq("-source:3.0-migration")
+    } else {
+      Nil
+    }
+  },
+  pomExtra := scala.xml.NodeSeq.Empty, // Can be removed when dropping interplay
   developers += Developer(
     "playframework",
     "The Play Framework Contributors",
@@ -40,7 +47,7 @@ lazy val `play-slick-root` = (project in file("."))
 lazy val `play-slick` = (project in file("src/core"))
   .enablePlugins(PlayLibrary, Playdoc, MimaPlugin)
   .configs(Docs)
-  .settings(libraryDependencies ++= Dependencies.core)
+  .settings(libraryDependencies ++= Dependencies.core.value)
   .settings(mimaSettings)
   .settings(commonSettings)
 
@@ -68,5 +75,11 @@ val previousVersion: Option[String] = Some("5.0.2")
 ThisBuild / mimaFailOnNoPrevious := false
 
 def mimaSettings = Seq(
-  mimaPreviousArtifacts := previousVersion.map(organization.value %% moduleName.value % _).toSet
+  mimaPreviousArtifacts := {
+    if (scalaBinaryVersion.value == "3") {
+      Set.empty // TODO
+    } else {
+      previousVersion.map(organization.value %% moduleName.value % _).toSet
+    }
+  }
 )
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index fb90d410..af4fc3a7 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -1,14 +1,17 @@
 import sbt._
+import Keys._
 
 object Dependencies {
-  val core = Seq(
-    Library.slick,
-    Library.slickHikariCP,
-    Library.playCore,
-    Library.playJdbcApi,
-    Library.playLogback % "test",
-    Library.playSpecs2  % "test",
-    Library.h2          % "test"
+  val core = Def.setting(
+    Seq(
+      Library.slick.value,
+      Library.slickHikariCP.value,
+      Library.playCore,
+      Library.playJdbcApi,
+      Library.playLogback % "test",
+      Library.playSpecs2  % "test",
+      Library.h2          % "test"
+    )
   )
 
   val evolutions = Seq(
@@ -21,17 +24,23 @@ object Dependencies {
 object Version {
   val play = _root_.play.core.PlayVersion.current
 
-  val slick = "3.4.1"
-  val h2    = "2.2.220"
+  val slick = Def.setting(
+    if (scalaBinaryVersion.value == "3") {
+      "3.5.0-M4"
+    } else {
+      "3.4.1"
+    }
+  )
+  val h2 = "2.2.220"
 }
 
 object Library {
-  val playLogback        = "com.typesafe.play"  %% "play-logback"         % Version.play
-  val playCore           = "com.typesafe.play"  %% "play"                 % Version.play
-  val playJdbcApi        = "com.typesafe.play"  %% "play-jdbc-api"        % Version.play
-  val playJdbcEvolutions = "com.typesafe.play"  %% "play-jdbc-evolutions" % Version.play
-  val playSpecs2         = "com.typesafe.play"  %% "play-specs2"          % Version.play
-  val slick              = "com.typesafe.slick" %% "slick"                % Version.slick
-  val slickHikariCP      = "com.typesafe.slick" %% "slick-hikaricp"       % Version.slick
-  val h2                 = "com.h2database"      % "h2"                   % Version.h2
+  val playLogback        = "com.typesafe.play" %% "play-logback"         % Version.play
+  val playCore           = "com.typesafe.play" %% "play"                 % Version.play
+  val playJdbcApi        = "com.typesafe.play" %% "play-jdbc-api"        % Version.play
+  val playJdbcEvolutions = "com.typesafe.play" %% "play-jdbc-evolutions" % Version.play
+  val playSpecs2         = "com.typesafe.play" %% "play-specs2"          % Version.play
+  val slick              = Def.setting("com.typesafe.slick" %% "slick" % Version.slick.value)
+  val slickHikariCP      = Def.setting("com.typesafe.slick" %% "slick-hikaricp" % Version.slick.value)
+  val h2                 = "com.h2database"     % "h2"                   % Version.h2
 }
diff --git a/src/core/src/main/scala/play/api/db/slick/DatabaseConfigProvider.scala b/src/core/src/main/scala/play/api/db/slick/DatabaseConfigProvider.scala
index 87e3ea6d..4c2aeb7b 100644
--- a/src/core/src/main/scala/play/api/db/slick/DatabaseConfigProvider.scala
+++ b/src/core/src/main/scala/play/api/db/slick/DatabaseConfigProvider.scala
@@ -158,7 +158,7 @@ trait HasDatabaseConfig[P <: BasicProfile] {
   @deprecated("Use `profile` instead of `driver`", "2.1")
   protected final lazy val driver: P = dbConfig.profile // field is lazy to avoid early initializer problems.
   /** The Slick database extracted from `dbConfig`. */
-  protected final def db: P#Backend#Database = dbConfig.db
+  protected final def db = dbConfig.db
 }
 
 /**
diff --git a/src/core/src/test/scala/play/api/db/slick/DefaultSlickApiSpec.scala b/src/core/src/test/scala/play/api/db/slick/DefaultSlickApiSpec.scala
index 40130932..55b836c6 100644
--- a/src/core/src/test/scala/play/api/db/slick/DefaultSlickApiSpec.scala
+++ b/src/core/src/test/scala/play/api/db/slick/DefaultSlickApiSpec.scala
@@ -2,7 +2,6 @@ package play.api.db.slick
 
 import java.util.concurrent.ConcurrentLinkedDeque
 
-import org.specs2.mock.Mockito
 import org.specs2.mutable.Specification
 import play.api.inject.Injector
 import play.api.inject.ApplicationLifecycle
@@ -10,7 +9,7 @@ import play.api.inject.DefaultApplicationLifecycle
 import play.api.inject.guice.GuiceApplicationBuilder
 import slick.basic.BasicProfile
 
-class DefaultSlickApiSpec extends Specification with Mockito { self =>
+class DefaultSlickApiSpec extends Specification { self =>
 
   sequential
 
diff --git a/src/core/src/test/scala/play/api/db/slick/SlickApiSpec.scala b/src/core/src/test/scala/play/api/db/slick/SlickApiSpec.scala
index f92ac1a8..1f23cb67 100644
--- a/src/core/src/test/scala/play/api/db/slick/SlickApiSpec.scala
+++ b/src/core/src/test/scala/play/api/db/slick/SlickApiSpec.scala
@@ -27,7 +27,7 @@ class SlickApiSpec extends Specification {
     "return a DatabaseConfig instance for a correctly configured database" in {
       import SUTWithGoodConfig._
       val default = api.dbConfig[BasicProfile](DbName("default"))
-      default must not beNull
+      default must not(beNull)
     }
     "always return the same DatabaseConfig instance for a given database name" in {
       import SUTWithGoodConfig._