diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 28a2041e..74ecc456 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -42,3 +42,24 @@ jobs:
       shell: bash
       run: |
         sbt -v -Dfile.encoding=UTF8 scalafmtCheckAll
+
+  ea-test:
+    runs-on: ubuntu-latest
+    env:
+      # define Java options for both official sbt and sbt-extras
+      JAVA_OPTS: -Xms2048M -Xmx2048M -Xss6M -XX:ReservedCodeCacheSize=256M -Dfile.encoding=UTF-8
+      JVM_OPTS:  -Xms2048M -Xmx2048M -Xss6M -XX:ReservedCodeCacheSize=256M -Dfile.encoding=UTF-8
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+    - name: Setup JDK
+      uses: actions/setup-java@v3
+      with:
+        java-version: 22-ea
+        distribution: temurin
+        jdkFile: https://download.java.net/java/early_access/jdk22/20/GPL/openjdk-22-ea+20_linux-x64_bin.tar.gz
+        cache: sbt
+    - name: Build and test
+      shell: bash
+      run: |
+        sbt -v -Dfile.encoding=UTF8 "jarjar/publishLocal" "jarjar/IntegrationTest/test" "+test" "publishLocal;scripted"
diff --git a/build.sbt b/build.sbt
index 8241cc50..f5d96e6a 100644
--- a/build.sbt
+++ b/build.sbt
@@ -146,6 +146,7 @@ lazy val sbtplugin = project
         Vector("-Xmx1024M", "-Dplugin.version=" + version.value)
     }
     pluginCrossBuild / sbtVersion := "1.2.8"
+    scriptedSbt := "1.9.7"
     scriptedBufferLog := false
   })
 
diff --git a/jarjar/src/it/java/com/eed3si9n/jarjar/integration/BadPackagesTest.java b/jarjar/src/it/java/com/eed3si9n/jarjar/integration/BadPackagesTest.java
index 05dc45fa..f0cd6886 100644
--- a/jarjar/src/it/java/com/eed3si9n/jarjar/integration/BadPackagesTest.java
+++ b/jarjar/src/it/java/com/eed3si9n/jarjar/integration/BadPackagesTest.java
@@ -159,7 +159,7 @@ private File createJarWithClasses(Map<String, String> classNameMap) throws Excep
     String[] paths = sourcePaths.toArray(new String[sourcePaths.size()]);
 
     File folder = createTree(files);
-    Assert.assertTrue(tryCompile(folder, paths, "-source", "6", "-target", "6"));
+    Assert.assertTrue(tryCompile(folder, paths, "-source", "1.8", "-target", "1.8"));
 
     for (String className : classNameMap.keySet()) {
       String dstName = classNameMap.get(className).replaceAll("[.]", "/") + ".class";
@@ -212,14 +212,14 @@ private File createJarWithOldVersion() throws IOException {
     String[] paths = { sourcePath };
 
     File folder = createTree(files);
-    Assert.assertTrue(tryCompile(folder, paths, "-source", "6", "-target", "6"));
+    Assert.assertTrue(tryCompile(folder, paths, "-source", "1.8", "-target", "1.8"));
 
     File srcFile = new File(folder + File.separator + binaryPath);
     File dstFile = new File(folder + File.separator + "oldversion" + File.separator + binaryPath);
     dstFile.getParentFile().mkdirs();
     srcFile.renameTo(dstFile);
 
-    Assert.assertTrue(tryCompile(folder, paths, "-source", "6", "-target", "6"));
+    Assert.assertTrue(tryCompile(folder, paths, "-source", "1.8", "-target", "1.8"));
 
     for (String file : new FileTree(folder)) {
       if (file.endsWith(".java")) {
diff --git a/jarjar/src/it/java/com/eed3si9n/jarjar/integration/JavaVersionsTest.java b/jarjar/src/it/java/com/eed3si9n/jarjar/integration/JavaVersionsTest.java
index fb6710bd..4699b5cd 100644
--- a/jarjar/src/it/java/com/eed3si9n/jarjar/integration/JavaVersionsTest.java
+++ b/jarjar/src/it/java/com/eed3si9n/jarjar/integration/JavaVersionsTest.java
@@ -16,16 +16,6 @@ public void testShadeJava8Class() throws Exception {
     testVersion("1.8");
   }
 
-  @Test
-  public void testShadeJava7Class() throws Exception {
-    testVersion("1.7");
-  }
-
-  @Test
-  public void testShadeJava6Class() throws Exception {
-    testVersion("1.6");
-  }
-
   private void testVersion(String version) throws Exception {
     if (!javaVersionIsAtLeast(version)) {
       System.out.println("Cannot test java " + version + " if this is being run in less than " + version + ".");
diff --git a/sbtplugin/src/sbt-test/actions/simple/build.sbt b/sbtplugin/src/sbt-test/actions/simple/build.sbt
index d4f7b29e..778fb1f7 100644
--- a/sbtplugin/src/sbt-test/actions/simple/build.sbt
+++ b/sbtplugin/src/sbt-test/actions/simple/build.sbt
@@ -1,5 +1,5 @@
 ThisBuild / organization := "com.example"
-ThisBuild / scalaVersion := "2.12.11"
+ThisBuild / scalaVersion := "2.12.18"
 
 lazy val shadedJawn = project
   .enablePlugins(JarjarAbramsPlugin)
diff --git a/sbtplugin/src/sbt-test/actions/two/build.sbt b/sbtplugin/src/sbt-test/actions/two/build.sbt
index 474f56f9..efb80d7b 100644
--- a/sbtplugin/src/sbt-test/actions/two/build.sbt
+++ b/sbtplugin/src/sbt-test/actions/two/build.sbt
@@ -1,5 +1,5 @@
 ThisBuild / organization := "com.example"
-ThisBuild / scalaVersion := "2.12.11"
+ThisBuild / scalaVersion := "2.12.18"
 
 lazy val shadedJawn = project
   .enablePlugins(JarjarAbramsPlugin)