diff --git a/.github/workflows/backup.yaml b/.github/workflows/backup.yaml
index cb930ac..10e8b76 100644
--- a/.github/workflows/backup.yaml
+++ b/.github/workflows/backup.yaml
@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
-          java-version: '20'
+          java-version: '19'
           distribution: 'adopt'
       - name: Validate Gradle wrapper
         uses: gradle/wrapper-validation-action@ccb4328a959376b642e027874838f60f8e596de3
diff --git a/.github/workflows/library.yaml b/.github/workflows/library.yaml
index 88fecc5..279e453 100644
--- a/.github/workflows/library.yaml
+++ b/.github/workflows/library.yaml
@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
-          java-version: '20'
+          java-version: '19'
           distribution: 'adopt'
       - name: Validate Gradle wrapper
         uses: gradle/wrapper-validation-action@ccb4328a959376b642e027874838f60f8e596de3
diff --git a/.github/workflows/memcache.yaml b/.github/workflows/memcache.yaml
index 3b6fce5..a7f5c1b 100644
--- a/.github/workflows/memcache.yaml
+++ b/.github/workflows/memcache.yaml
@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
-          java-version: '20'
+          java-version: '19'
           distribution: 'adopt'
       - name: Validate Gradle wrapper
         uses: gradle/wrapper-validation-action@ccb4328a959376b642e027874838f60f8e596de3
diff --git a/.github/workflows/restore.yaml b/.github/workflows/restore.yaml
index c0aff62..a073190 100644
--- a/.github/workflows/restore.yaml
+++ b/.github/workflows/restore.yaml
@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
-          java-version: '20'
+          java-version: '19'
           distribution: 'adopt'
       - name: Validate Gradle wrapper
         uses: gradle/wrapper-validation-action@ccb4328a959376b642e027874838f60f8e596de3