diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b98f7521..48456bdd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,10 +19,10 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: set up JDK 17
+      - name: set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: '17'
+          java-version: '21'
           distribution: 'temurin'
           cache: gradle
 
diff --git a/.github/workflows/create_release.yml b/.github/workflows/create_release.yml
index 9b34291a..ba73166d 100644
--- a/.github/workflows/create_release.yml
+++ b/.github/workflows/create_release.yml
@@ -17,10 +17,10 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: set up JDK 17
+      - name: set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: '17'
+          java-version: '21'
           distribution: 'temurin'
           cache: gradle