diff --git a/deps/CMakeLists.txt b/deps/CMakeLists.txt
index 3b2639413c..4d762a524a 100644
--- a/deps/CMakeLists.txt
+++ b/deps/CMakeLists.txt
@@ -117,6 +117,7 @@ if (MSVC)
     endif ()
 elseif (APPLE)
     message("OS X SDK Path: ${CMAKE_OSX_SYSROOT}")
+    set(CMAKE_OSX_DEPLOYMENT_TARGET "10.15" CACHE STRING "Minimum OS X deployment version" FORCE)
     if (CMAKE_OSX_DEPLOYMENT_TARGET)
         set(DEP_OSX_TARGET "${CMAKE_OSX_DEPLOYMENT_TARGET}")
         message("OS X Deployment Target: ${DEP_OSX_TARGET}")