diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 35a6b89..e9ad6a2 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -14,18 +14,12 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v4
         with:
-          java-version: '23'
+          java-version: '21'
           distribution: 'temurin'
           cache: gradle
 
-      # https://github.com/gradle/actions/blob/main/docs/setup-gradle.md#build-with-a-specific-gradle-version
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v4
-        with:
-          gradle-version: '8.14.2' # Quotes required to prevent YAML converting to number
-
       - name: Run benchmark
-        run: gradle :benchmark:run
+        run: ./gradlew :benchmark:run
 
       - name: Upload benchmark artifacts
         uses: actions/upload-artifact@v4
diff --git a/.github/workflows/build-project.yml b/.github/workflows/build-project.yml
index b28b772..0fdea61 100644
--- a/.github/workflows/build-project.yml
+++ b/.github/workflows/build-project.yml
@@ -16,18 +16,12 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v4
         with:
-          java-version: '23'
+          java-version: '21'
           distribution: 'temurin'
           cache: gradle
 
-      # https://github.com/gradle/actions/blob/main/docs/setup-gradle.md#build-with-a-specific-gradle-version
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v4
-        with:
-          gradle-version: '8.14.2' # Quotes required to prevent YAML converting to number
-
       - name: Build with Gradle
-        run: gradle build
+        run: ./gradlew build
 
       - name: Run checks and tests
-        run: gradle check
\ No newline at end of file
+        run: ./gradlew check
\ No newline at end of file
diff --git a/.github/workflows/publish-github-packages.yml b/.github/workflows/publish-github-packages.yml
index 5995b77..e44ca37 100644
--- a/.github/workflows/publish-github-packages.yml
+++ b/.github/workflows/publish-github-packages.yml
@@ -46,4 +46,4 @@ jobs:
         env:
           USERNAME: ${{ github.actor }}        # GitHub username of the user/bot triggering the workflow
           TOKEN: ${{ secrets.GITHUB_TOKEN }}   # GitHub token with packages:write permission
-        run: gradle publish
\ No newline at end of file
+        run: ./gradlew publish
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index a9e060a..2642bed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,6 +19,9 @@
 *.tar.gz
 *.rar
 
+# Exception: Allow gradle wrapper jar
+!gradle/wrapper/gradle-wrapper.jar
+
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
 replay_pid*
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..1b33c55
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ