@digitalisx suggested changes

.github/workflows/test.yaml

@@ -1,5 +1,5 @@
 name: Test Volatility3
-on: [push]
+on: [push, pull_request]
 jobs:
 
   build:
@@ -7,10 +7,10 @@ jobs:
     steps:
     - uses: actions/checkout@v2
 
-    - name: Set up Python 3.x
+    - name: Set up Python 3.6
       uses: actions/setup-python@v2
       with:
-        python-version: '3.x'
+        python-version: '3.6'
 
     - name: Install dependencies
       run: |