Index: ObjFW.xcodeproj/project.pbxproj
==================================================================
--- ObjFW.xcodeproj/project.pbxproj
+++ ObjFW.xcodeproj/project.pbxproj
@@ -1806,11 +1806,11 @@
 
 /* Begin PBXProject section */
 		08FB7793FE84155DC02AAC07 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0510;
+				LastUpgradeCheck = 0600;
 			};
 			buildConfigurationList = 1DEB919308733D9F0010E9CD /* Build configuration list for PBXProject "ObjFW" */;
 			compatibilityVersion = "Xcode 3.1";
 			developmentRegion = English;
 			hasScannedForEncodings = 1;