diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index e430e89..942dfd2 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -179,7 +179,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["3.1", "3.2", "3.3", "head"]
+        ruby: ["3.1", "3.2", "3.3", "3.4"]
     runs-on: "windows-2022"
     steps:
       - uses: actions/checkout@v4
@@ -500,7 +500,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["3.1", "3.2", "3.3", "head"]
+        ruby: ["3.1", "3.2", "3.3", "3.4"]
     runs-on: windows-2022
     steps:
       - uses: actions/checkout@v4