diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ee1c271..88477c4 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -16,7 +16,10 @@ on:
 jobs:
   my_job:
     name: test WordOps
-    runs-on: ubuntu-18.04
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-20.04, ubuntu-18.04]
     
     steps:
     - uses: actions/checkout@v2