diff --git a/.github/workflows/cmake.yaml b/.github/workflows/cmake.yaml
index 33fd7c9..ee33620 100644
--- a/.github/workflows/cmake.yaml
+++ b/.github/workflows/cmake.yaml
@@ -12,7 +12,7 @@ env:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     steps:
     - name: Install dependencies
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9b7cdf7..64c9439 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -7,10 +7,12 @@ on:
     types: [ opened, reopened, synchronize ]
 
 jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
+  builds:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-20.04, ubuntu-22.04]
+    runs-on: ${{ matrix.os }}
     steps:
     - name: Install dependencies
       run: |