diff --git a/.github/workflows/example_app.yaml b/.github/workflows/example_app.yaml
index 08aad16b..f6083d0e 100644
--- a/.github/workflows/example_app.yaml
+++ b/.github/workflows/example_app.yaml
@@ -69,7 +69,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: "zulu"
-          java-version: "21"
+          java-version: "17"
 
       - name: Setup Python
         uses: actions/setup-python@v5
diff --git a/.github/workflows/test_app.yaml b/.github/workflows/test_app.yaml
index 2b8b3841..d1f8a519 100644
--- a/.github/workflows/test_app.yaml
+++ b/.github/workflows/test_app.yaml
@@ -70,7 +70,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: "zulu"
-          java-version: "21"
+          java-version: "17"
 
       - name: Setup Python
         uses: actions/setup-python@v5
diff --git a/.github/workflows/user_app.yaml b/.github/workflows/user_app.yaml
index 6318245d..d2192656 100644
--- a/.github/workflows/user_app.yaml
+++ b/.github/workflows/user_app.yaml
@@ -53,7 +53,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: "zulu"
-          java-version: "21"
+          java-version: "17"
 
       - name: Setup Python
         uses: actions/setup-python@v5