diff --git a/DRAMSys/library/library.pro b/DRAMSys/library/library.pro
index 84267536..4364debd 100644
--- a/DRAMSys/library/library.pro
+++ b/DRAMSys/library/library.pro
@@ -63,6 +63,7 @@ unix:!macx {
 macx: {
         CONFIG += c++11
         QMAKE_CXXFLAGS += -std=c++0x -stdlib=libc++ -O0 -g
+        QMAKE_MACOSX_DEPLOYMENT_TARGET=10.14
 }
 
 QMAKE_CXXFLAGS += -isystem $${systemc_home}/include