diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 103d47c..6e1346e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,12 +8,6 @@ jobs:
         include:
           - ruby: 3.3
             os: ubuntu-22.04
-          - ruby: 3.2
-            os: ubuntu-20.04
-          - ruby: 3.1
-            os: macos-latest
-          - ruby: "3.0"
-            os: windows-latest
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4