diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 58c66a69d8..74aa0a1ea8 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -38,7 +38,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
-          java-version: 21
+          java-version: 11
           distribution: temurin
 
       - name: License Check
@@ -60,7 +60,7 @@ jobs:
         exclude:
           # was already built
           - os: 'ubuntu-latest'
-            jdk: 21
+            jdk: 11
             dist: 'temurin'
           # exclude temurin on MacOS. zulu (also hotspot) and OpenJ9 are sufficient.
           - os: 'macOS-latest'