diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index ee9a2682..0362caa2 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -12,11 +12,11 @@ jobs:
         operating-system: [ ubuntu-latest, windows-latest, macos-12 ]
     steps:
     - uses: actions/checkout@v4
-    - name: Set up JDK 22
+    - name: Set up JDK 21
       uses: actions/setup-java@v4
       with:
         distribution: 'temurin'
-        java-version: 22
+        java-version: 21
     - name: Install Protoc
       uses: arduino/setup-protoc@v3
       with: