diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5c93e59..edaae63 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,11 +28,14 @@ jobs:
         run: bin/rubocop
 
   specs:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
 
     strategy:
       fail-fast: false
       matrix:
+        os:
+          - ubuntu-latest
+          - windows-latest
         ruby:
           - "4.0"
           - "3.4"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2bd26a3..86e9adb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@
 * FIX: Fixing the inverted _read_ and _execute_ bitmasks (#41 by @micahlee)
 * ADD: Dependabot configuration
 * CHG: Replacing Travis CI with GitHub Actions
+* ADD: Running specs against Windows
 
 ### Breaking