diff --git a/Make.config b/Make.config
index 090e64cb5a..163db7a76c 100644
--- a/Make.config
+++ b/Make.config
@@ -48,7 +48,7 @@ IOS_PRODUCT=Xamarin.iOS
 IOS_PACKAGE_NAME=Xamarin.iOS
 IOS_PACKAGE_NAME_LOWER=$(shell echo $(IOS_PACKAGE_NAME) | tr "[:upper:]" "[:lower:]")
 # NEVER customize IOS_PACKAGE_VERSION itself, other parts (mtouch, web updater) are using the IOS_PACKAGE_VERSION_* variables
-IOS_PACKAGE_VERSION=11.9.$(PACKAGE_VERSION_REV).$(IOS_COMMIT_DISTANCE)
+IOS_PACKAGE_VERSION=11.11.$(PACKAGE_VERSION_REV).$(IOS_COMMIT_DISTANCE)
 IOS_PACKAGE_VERSION_MAJOR=$(word 1, $(subst ., ,$(IOS_PACKAGE_VERSION)))
 IOS_PACKAGE_VERSION_MINOR=$(word 2, $(subst ., ,$(IOS_PACKAGE_VERSION)))
 IOS_PACKAGE_VERSION_REV=$(PACKAGE_VERSION_REV)
@@ -260,7 +260,7 @@ MAC_PRODUCT=Xamarin.Mac
 MAC_PACKAGE_NAME=xamarin.mac
 MAC_PACKAGE_NAME_LOWER=$(shell echo $(MAC_PACKAGE_NAME) | tr "[:upper:]" "[:lower:]")
 
-MAC_PACKAGE_VERSION=4.3.$(PACKAGE_VERSION_REV).$(MAC_COMMIT_DISTANCE)
+MAC_PACKAGE_VERSION=4.5.$(PACKAGE_VERSION_REV).$(MAC_COMMIT_DISTANCE)
 MAC_PACKAGE_VERSION_MAJOR=$(word 1, $(subst ., ,$(MAC_PACKAGE_VERSION)))
 MAC_PACKAGE_VERSION_MINOR=$(word 2, $(subst ., ,$(MAC_PACKAGE_VERSION)))
 MAC_PACKAGE_VERSION_REV=$(PACKAGE_VERSION_REV)