diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 6d189a8..ba48686 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -13,6 +13,7 @@ jobs:
         os:
           - macos-10.15
           - ubuntu-18.04
+          - windows-2019
         ghc:
           - 8.8.4
         cabal: