diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7811903..5cfdafe 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -5,11 +5,10 @@ on: [workflow_dispatch]
 jobs:
   test:
     name: "Test on Python ${{ matrix.python-version }} (${{ matrix.os }})"
-    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        os: [ubuntu-latest]
+        python-version: ["3.12"]
     steps:
       - uses: "actions/checkout@v4"
         with: