diff --git a/Externals/imgui/imconfig.h b/Externals/imgui/imconfig.h
index 7082c55075..f255601704 100644
--- a/Externals/imgui/imconfig.h
+++ b/Externals/imgui/imconfig.h
@@ -27,7 +27,7 @@
 //#define IMGUI_API __declspec( dllimport )
 
 //---- Don't define obsolete functions/enums/behaviors. Consider enabling from time to time after updating to avoid using soon-to-be obsolete function/names.
-//#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS
 
 //---- Disable all of Dear ImGui or don't implement standard windows.
 // It is very strongly recommended to NOT disable the demo windows during development. Please read comments in imgui_demo.cpp.