diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 610ca7a43..2963dbe71 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -31,7 +31,11 @@ jobs:
         uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
-          java-version: '17'
+          java-version: '11'
+      - name: Gradle version
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: --version
       - name: Build and test
         uses: gradle/gradle-build-action@v2
         with:
diff --git a/build.gradle b/build.gradle
index 77a7c6627..6e50cd7a7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -28,8 +28,8 @@ java {
 }
 
 compileJava {
-    sourceCompatibility = '17'
-    targetCompatibility = '17'
+    sourceCompatibility = '11'
+    targetCompatibility = '11'
 }
 
 configurations {