diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index bbbdf55..b14deeb 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [MacOS-latest, Windows-latest, Linux-latest]
+        os: [macos-latest, windows-latest, ubuntu-latest]
 
     steps:
     - uses: actions/checkout@v2