diff --git a/.github/workflows/reusable-phpstan.yml b/.github/workflows/reusable-phpstan.yml
index d33b0a7..0ae5da0 100644
--- a/.github/workflows/reusable-phpstan.yml
+++ b/.github/workflows/reusable-phpstan.yml
@@ -2,6 +2,12 @@ name: PHPStan
 
 on:
   workflow_call:
+    inputs:
+      version:
+        description: "The PHPStan version to use. Defaults to the latest available version."
+        type: string
+        required: false
+        default: ""
 
 jobs:
   phpstan:
@@ -18,13 +24,22 @@ jobs:
         with:
           files: "phpstan.neon*"
 
+      - name: Create tools string
+        id: tools
+        run: |
+          if [ "${{ inputs.version }}" == "" ]; then
+            echo 'TOOLS=phpstan' >> "$GITHUB_OUTPUT"
+          else
+            echo 'TOOLS=phpstan:${{ inputs.version }}' >> "$GITHUB_OUTPUT"
+          fi
+
       - name: Install PHP
         if: ${{ steps.has_config.outputs.files_exists == 'true' }}
         uses: shivammathur/setup-php@v2
         with:
           php-version: 'latest'
           coverage: none
-          tools: phpstan
+          tools: ${{ steps.tools.outputs.TOOLS }}
 
       # Install dependencies and handle caching in one go.
       # Dependencies need to be installed to make sure the PHPUnit classes are recognized.