diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1ee2bb6..6282b3a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,12 +11,6 @@ jobs:
     strategy:
       matrix:
         platform:
-          - os: ubuntu-latest
-            generator: Unix Makefiles
-          - os: macos-latest
-            generator: Unix Makefiles
-          - os: windows-latest
-            generator: Visual Studio 17 2022
           - os: windows-latest
             generator: MSYS Makefiles
           - os: windows-latest