diff --git a/.appveyor.yml b/.appveyor.yml
index 2d34504e..ab56712f 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -335,7 +335,7 @@ for:
   -
     matrix:
       only:
-        - image: macos-bigsur
+        - image: macos-monterey
 
     clone_folder: ~/mmapper
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index dbdb816a..0f1dfba7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,7 +46,7 @@ endif()
 
 if(APPLE)
     set(CMAKE_MACOSX_RPATH TRUE)
-    set(CMAKE_OSX_DEPLOYMENT_TARGET "11.0" CACHE STRING "Minimum OS X deployment version" FORCE)
+    set(CMAKE_OSX_DEPLOYMENT_TARGET "12.0" CACHE STRING "Minimum OS X deployment version" FORCE)
 endif()
 
 if(WIN32)