diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index eb369e1..edc03b9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -15,10 +15,29 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Setup Java
+        if: matrix.os == 'windows-latest'
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 21
+
       - name: Run action
         uses: ./
 
+      - name: Get version
+        run: openapi-generator-cli version
+
       - name: Run action with version
         uses: ./
         with:
-          version: 2.3.4
+          version: 7.9.0
+
+      - name: Check version
+        shell: bash
+        run: |
+          if [[ $(openapi-generator-cli version) != '7.9.0' ]]; then
+            echo 'Version does not match. See version below:'
+            openapi-generator-cli --version
+            exit 1
+          fi
diff --git a/README.md b/README.md
index 4461339..9303b60 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ jobs:
       - name: Setup OpenAPI
         uses: remarkablemark/setup-openapi@v1
 
-      - name: Generate Ruby client from spec
+      - name: Generate Ruby Client
         run: openapi-generator-cli generate -i petstore.yaml -g ruby -o /tmp/test/
 ```
 
@@ -30,6 +30,12 @@ Install OpenAPI Generator CLI tool:
 - uses: remarkablemark/setup-openapi@v1
 ```
 
+Generate a Ruby client from a valid [petstore.yaml](https://petstore3.swagger.io/) doc:
+
+```yaml
+- run: openapi-generator-cli generate -i petstore.yaml -g ruby -o /tmp/test/
+```
+
 See [action.yml](action.yml)
 
 ## Inputs
diff --git a/action.yml b/action.yml
index 54208e2..38be09a 100644
--- a/action.yml
+++ b/action.yml
@@ -10,10 +10,14 @@ inputs:
 runs:
   using: composite
   steps:
-    - name: Print version
-      shell: bash
-      run: |
-        echo "version: $VERSION"
+    - name: Install OpenAPI Generator CLI
+      shell: sh
+      run: npm install --global @openapitools/openapi-generator-cli
+
+    - name: Set OpenAPI Generator Version
+      if: inputs.version
+      shell: sh
+      run: openapi-generator-cli version-manager set $VERSION
       env:
         VERSION: ${{ inputs.version }}