diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 1ea9f23c0..f526447ee 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -16,8 +16,12 @@ jobs:
         rust:
           - "1.47" # MSRV
           - "stable"
+        os:
+          - ubuntu-latest
+          - macOS-latest
+          - windows-latest
 
-    name: "Test - Rust ${{ matrix.rust }}"
+    name: "Test - Rust ${{ matrix.rust }} on ${{ matrix.os }"
 
     steps:
       - uses: actions/checkout@v1