diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7e3b2dd..998f315 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,7 +10,14 @@ on:
 
 jobs:
   ci:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - macOS-latest
+          - windows-latest
     steps:
       -
         name: Checkout
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 1796f42..4aa0cb2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,14 @@ on:
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - macOS-latest
+          - windows-latest
     steps:
       -
         # https://github.com/actions/checkout