diff --git a/.github/workflows/test-build.yml b/.github/workflows/test-build.yml
index 30b98c9b4..5e990d0a5 100644
--- a/.github/workflows/test-build.yml
+++ b/.github/workflows/test-build.yml
@@ -114,8 +114,7 @@ jobs:
       CC: clang
     strategy:
       matrix:
-        os: [ubuntu-latest]
-        #os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-latest, macos-latest]
       fail-fast: false
     steps:
       - name: Checkout Yosys
diff --git a/.github/workflows/test-sanitizers.yml b/.github/workflows/test-sanitizers.yml
index 562a87f76..6f3c10903 100644
--- a/.github/workflows/test-sanitizers.yml
+++ b/.github/workflows/test-sanitizers.yml
@@ -42,8 +42,7 @@ jobs:
       UBSAN_OPTIONS: halt_on_error=1
     strategy:
       matrix:
-        os: [ubuntu-latest]
-        #os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-latest, macos-latest]
         sanitizer: ['undefined,address']
       fail-fast: false
     steps: