diff --git a/.github/workflows/ios-release.yml b/.github/workflows/ios-release.yml
index e21a9a4be..df3398125 100644
--- a/.github/workflows/ios-release.yml
+++ b/.github/workflows/ios-release.yml
@@ -5,7 +5,7 @@ on:
 
 jobs:
   build:
-    runs-on: macos-latest
+    runs-on: macos-10.15
     env:
       BUILDTYPE: Release
       HOMEBREW_NO_AUTO_UPDATE: 1