diff --git a/GCDWebServer.xcodeproj/project.pbxproj b/GCDWebServer.xcodeproj/project.pbxproj
index fe9e1e6..c70f4ad 100644
--- a/GCDWebServer.xcodeproj/project.pbxproj
+++ b/GCDWebServer.xcodeproj/project.pbxproj
@@ -494,6 +494,7 @@
 		1DEB928608733DD80010E9CD /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				MACOSX_DEPLOYMENT_TARGET = 10.7;
 				PRODUCT_NAME = GCDWebServer;
 				SDKROOT = macosx;
 			};
@@ -502,6 +503,7 @@
 		1DEB928708733DD80010E9CD /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				MACOSX_DEPLOYMENT_TARGET = 10.7;
 				PRODUCT_NAME = GCDWebServer;
 				SDKROOT = macosx;
 			};
@@ -552,6 +554,7 @@
 			buildSettings = {
 				CODE_SIGN_IDENTITY = "iPhone Developer";
 				INFOPLIST_FILE = iOS/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 5.0;
 				PRODUCT_NAME = GCDWebServer;
 				PROVISIONING_PROFILE = "";
 				SDKROOT = iphoneos;
@@ -564,6 +567,7 @@
 			buildSettings = {
 				CODE_SIGN_IDENTITY = "iPhone Developer";
 				INFOPLIST_FILE = iOS/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 5.0;
 				PRODUCT_NAME = GCDWebServer;
 				PROVISIONING_PROFILE = "";
 				SDKROOT = iphoneos;