diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e13ddc2..0ae024c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -54,7 +54,10 @@ jobs:
       run: make distcheck
 
   macos-catalina:
-    runs-on: macos-10.15
+    strategy:
+      matrix:
+        os: [ macos-10.15, macos-11 ]
+    runs-on: ${{ matrix.os }}
 
     steps:
     - name: install dependencies