diff --git a/.github/workflows/validate.yaml b/.github/workflows/validate.yaml
index 6392381..91730e1 100644
--- a/.github/workflows/validate.yaml
+++ b/.github/workflows/validate.yaml
@@ -4,20 +4,21 @@ on: push
 
 jobs:
   validate:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - name: Checkout this repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup Python
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v5
         with:
-          python-version: 3.10.4
+          python-version: 3.12
           cache: 'pip'
 
       - name: Install preprequisites
         run: |
           python -m pip install --upgrade pip
+          pip install pyyaml==5.3.1
           pip install --upgrade opera-tosca-parser
 
       - name: Run validation script