diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 97267341..9af0ae16 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,7 +15,7 @@ jobs:
       matrix:
         # Use these Java versions
         java: [
-          17    # Latest version
+          21    # Latest version
         ]
         # and run on both Linux and Windows
         os: [ubuntu-20.04]
@@ -33,7 +33,7 @@ jobs:
       - name: build
         run: ./gradlew build
       - name: capture build artifacts
-        if: ${{ runner.os == 'Linux' && matrix.java == '17' }} # Only upload artifacts built from LTS java on one OS
+        if: ${{ runner.os == 'Linux' && matrix.java == '21' }} # Only upload artifacts built from LTS java on one OS
         uses: actions/upload-artifact@v2
         with:
           name: Artifacts
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ae05f9d9..b15acc4b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -24,7 +24,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v1
         with:
-          java-version: 17
+          java-version: 21
 
       - name: Grant execute permission for gradlew
         run: chmod +x gradlew