diff --git a/.github/workflows/ci-builds.yml b/.github/workflows/ci-builds.yml
index a29df84a..3be41d58 100644
--- a/.github/workflows/ci-builds.yml
+++ b/.github/workflows/ci-builds.yml
@@ -195,7 +195,7 @@ jobs:
         include:
           - target: Debug # tests only
             os: macos-latest
-            xcode: 11.7
+            xcode: 12.1
             type: Debug
             do_tests: 0 # tests do not work yet on mac
             make_package: false
@@ -209,14 +209,14 @@ jobs:
 
           - target: 10.15_Catalina
             os: macos-10.15
-            xcode: 11.7
+            xcode: 12.1
             type: Release
             do_tests: 0
             make_package: true
 
           - target: 11.0_Big_Sur
             os: macos-11.0
-            xcode: 12.2
+            xcode: 12.5
             type: Release
             do_tests: 0
             make_package: true