diff --git a/OscarCI.toml b/OscarCI.toml
index e1e8db73..c81ae34b 100644
--- a/OscarCI.toml
+++ b/OscarCI.toml
@@ -30,10 +30,10 @@ julia-version = [ "~1.6.0-0", "~1.10.0-0"]
   Oscar = "<matching>"
   Polymake = ""
   julia-version = "1.6"
-  os = "macos-latest"
+  os = "macos-13"
 
-  [include.macamd64]
+  [include.macaarch64]
   Oscar = "<matching>"
   Polymake = ""
   julia-version = "1.10"
-  os = "macos-13"
+  os = "macos-14"