diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 533867e..1ab189b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -22,10 +22,10 @@ jobs:
         id: coursier-cache
         uses: coursier/cache-action@v8
 
-      - name: Install Adoptium Temurin OpenJDK
-        uses: coursier/setup-action@v2
+      - uses: actions/setup-java@v5
         with:
-          jvm: adoptium:8
+          distribution: temurin
+          java-version: 17
 
       - name: Install sbt
         uses: sbt/setup-sbt@v1
diff --git a/.github/workflows/scala.yml b/.github/workflows/scala.yml
index 46086e1..580d659 100644
--- a/.github/workflows/scala.yml
+++ b/.github/workflows/scala.yml
@@ -23,10 +23,18 @@ jobs:
     - uses: actions/checkout@v6
     - name: Set up JDK 1.8
       uses: actions/setup-java@v5
+      if: ${{ matrix.jobtype == 1 }}
       with:
         distribution: temurin
         java-version: 8.0.372+7
         cache: sbt
+    - name: Set up JDK 17
+      uses: actions/setup-java@v5
+      if: ${{ matrix.jobtype == 2 }}
+      with:
+        distribution: temurin
+        java-version: 17
+        cache: sbt
     - name: Install sbt
       uses: sbt/setup-sbt@v1
     - name: Build and test
diff --git a/build.sbt b/build.sbt
index bc7ba5e..6bf8a11 100644
--- a/build.sbt
+++ b/build.sbt
@@ -7,7 +7,7 @@ val packagerVersion = "1.11.7"
 val packager19xVersion = "1.9.16"
 
 val scala212 = "2.12.21"
-val scala3 = "3.7.4"
+val scala3 = "3.8.1"
 
 addSbtPlugin(
   "com.github.sbt" % "sbt-native-packager" % packagerVersion % "provided"
@@ -45,7 +45,7 @@ lazy val `sbt-javaagent` = (project.in(file(".")))
     crossScalaVersions := Seq(scala212, scala3),
     scalacOptions ++= {
       scalaBinaryVersion.value match {
-        case "2.12" => Seq("-Xsource:3")
+        case "2.12" => Seq("-Xsource:3", "-release:8")
         case _      => Nil
       }
     },
@@ -62,7 +62,7 @@ lazy val `sbt-javaagent` = (project.in(file(".")))
     (pluginCrossBuild / sbtVersion) := {
       scalaBinaryVersion.value match {
         case "2.12" => "1.11.6"
-        case _      => "2.0.0-RC6"
+        case _      => "2.0.0-RC9"
       }
     },
     scriptedSbt := {