diff --git a/.github/workflows/build-macos.yml b/.github/workflows/build-macos.yml
index 2daaaf8f..3a284022 100644
--- a/.github/workflows/build-macos.yml
+++ b/.github/workflows/build-macos.yml
@@ -13,7 +13,7 @@ on:
 
 jobs:
   build:
-    runs-on: macos-10.15
+    runs-on: macos-11
 
     steps:
     - name: Check out selected branch
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7b476824..aeeec25b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -39,8 +39,8 @@ jobs:
       fail-fast: false
 
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10']
-        os: [ubuntu-18.04, ubuntu-latest, macos-latest]
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        os: [ubuntu-latest, macos-latest]
 
     steps:
     - uses: actions/checkout@v3