diff --git a/.github/workflows/kelpie.yaml b/.github/workflows/kelpie.yaml
index 87e0e7d..3f4f086 100644
--- a/.github/workflows/kelpie.yaml
+++ b/.github/workflows/kelpie.yaml
@@ -1,16 +1,19 @@
 name: Kelpie
 
-on: [push, pull_request]
+on: [push, pull_request, workflow_dispatch]
 
 jobs:
   build:
     runs-on: ubuntu-latest
     name: Build
+    strategy:
+      matrix:
+        java_version: [8, 11, 17, 21]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Cache repository
-      uses: actions/cache@v1
+      uses: actions/cache@v4
       with:
         path: ~/.gradle/caches
         key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
@@ -18,9 +21,30 @@ jobs:
           ${{ runner.os }}-gradle-
 
     - name: Setup Java
-      uses: actions/setup-java@v1
+      uses: actions/setup-java@v4
       with:
-        java-version: 1.8
+        java-version: ${{ matrix.java_version }}
+        distribution: 'temurin'
+
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@v4
 
     - name: Build Kelpie
       run: ./gradlew build
+
+    - name: Install distribution of Kelpie
+      run: ./gradlew installDist
+
+    - name: Checkout Kelpie-Test
+      uses: actions/checkout@v4
+      with:
+        repository: scalar-labs/kelpie-test
+        path: kelpie-test
+
+    - name: Build Kelpie-Test:print-modules
+      working-directory: kelpie-test/print-modules
+      run: gradle shadowJar
+
+    - name: Execute Kelpie-Test:print-modules
+      working-directory: kelpie-test
+      run: ${{ github.workspace }}/build/install/kelpie/bin/kelpie --config print-modules/config.toml
diff --git a/build.gradle b/build.gradle
index 28a758a..0188b73 100644
--- a/build.gradle
+++ b/build.gradle
@@ -23,15 +23,11 @@ dependencies {
     testImplementation group: 'org.mockito', name: 'mockito-core', version: '3.2.4'
 }
 
-task sourcesJar(type: Jar) {
-    classifier = 'sources'
-    from sourceSets.main.allSource
+java {
+    withJavadocJar()
+    withSourcesJar()
 }
 
-task javadocJar(type: Jar) {
-    classifier = 'javadoc'
-    from javadoc
-}
 
 sourceCompatibility = 1.8
 targetCompatibility = 1.8
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 9492014..81aa1c0 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.0.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists