diff --git a/.github/workflows/main.linux.temurin.current.yml b/.github/workflows/main.linux.temurin.current.yml
index 795459f..0a317e5 100644
--- a/.github/workflows/main.linux.temurin.current.yml
+++ b/.github/workflows/main.linux.temurin.current.yml
@@ -14,7 +14,7 @@ jobs:
       - name: JDK
         uses: actions/setup-java@v3
         with:
-          java-version: 20
+          java-version: 21
           distribution: 'temurin'
       - name: Build
         run: mvn --errors clean verify site
diff --git a/.github/workflows/main.linux.temurin.lts.yml b/.github/workflows/main.linux.temurin.lts.yml
index e3b2bfa..0da9c7c 100644
--- a/.github/workflows/main.linux.temurin.lts.yml
+++ b/.github/workflows/main.linux.temurin.lts.yml
@@ -14,7 +14,7 @@ jobs:
       - name: JDK
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 21
           distribution: 'temurin'
       - name: Build
         run: mvn --errors clean verify site
diff --git a/.github/workflows/main.windows.temurin.current.yml b/.github/workflows/main.windows.temurin.current.yml
index 7779955..f258a97 100644
--- a/.github/workflows/main.windows.temurin.current.yml
+++ b/.github/workflows/main.windows.temurin.current.yml
@@ -14,7 +14,7 @@ jobs:
       - name: JDK
         uses: actions/setup-java@v3
         with:
-          java-version: 20
+          java-version: 21
           distribution: 'temurin'
       - name: Build
         run: mvn --errors clean verify site
diff --git a/.github/workflows/main.windows.temurin.lts.yml b/.github/workflows/main.windows.temurin.lts.yml
index a2e06ff..3184b97 100644
--- a/.github/workflows/main.windows.temurin.lts.yml
+++ b/.github/workflows/main.windows.temurin.lts.yml
@@ -14,7 +14,7 @@ jobs:
       - name: JDK
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 21
           distribution: 'temurin'
       - name: Build
         run: mvn --errors clean verify site