diff --git a/.github/workflows/swift.yml b/.github/workflows/swift.yml
index 05ac5d6e..c88a3060 100644
--- a/.github/workflows/swift.yml
+++ b/.github/workflows/swift.yml
@@ -5,7 +5,7 @@ on: [push]
 jobs:
   build:
 
-    runs-on: emcee-macos-14
+    runs-on: emcee-macos-15
 
     steps:
     - uses: actions/checkout@v4