diff --git a/CMakeLists.txt b/CMakeLists.txt
index 843659dc..04790815 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -69,7 +69,7 @@ find_package(OpenSSL REQUIRED)
 
 
 if(APPLE)
-  set(CMAKE_OSX_DEPLOYMENT_TARGET 10.13)
+  set(CMAKE_OSX_DEPLOYMENT_TARGET 10.15)
 endif()
 
 set(USE_PCH FALSE CACHE BOOL "Use shared precompiled headers")