diff --git a/.github/workflows/build_python_3.9.yml b/.github/workflows/build_python_3.9.yml
index fe2f069..c7513e9 100644
--- a/.github/workflows/build_python_3.9.yml
+++ b/.github/workflows/build_python_3.9.yml
@@ -14,7 +14,7 @@ on:
 
 jobs:
   build:
-    runs-on: macos-13
+    runs-on: macos-14
 
     steps:
     - name: Checkout python repo