diff --git a/.github/workflows/build-release.yml b/.github/workflows/build-release.yml
index 8cf1b62d..4595819f 100644
--- a/.github/workflows/build-release.yml
+++ b/.github/workflows/build-release.yml
@@ -11,7 +11,7 @@ jobs:
       matrix:
         # Use these Java versions
         java: [
-          '17'    # Latest version
+          '21'    # Latest version
         ]
         # and run on both Linux and Windows
         os: [ ubuntu-20.04 ]
@@ -32,7 +32,7 @@ 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@v3
         with:
           name: Artifacts
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index fbf4a43c..4dd89ac2 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,7 +12,7 @@ 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@v3
         with:
           name: Artifacts