diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 9598f22..ba8df4c 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -21,7 +21,7 @@ jobs:
 
     strategy:
       matrix:
-        os: [ubuntu-22.04,ubuntu-20.04]
+        os: [ubuntu-22.04]
 
     steps:
     - uses: actions/checkout@v3