diff --git a/fmdb.xcodeproj/project.pbxproj b/fmdb.xcodeproj/project.pbxproj
index 4c54618a..00660321 100644
--- a/fmdb.xcodeproj/project.pbxproj
+++ b/fmdb.xcodeproj/project.pbxproj
@@ -411,7 +411,7 @@
 		08FB7793FE84155DC02AAC07 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0500;
+				LastUpgradeCheck = 0510;
 				TargetAttributes = {
 					BF5D041518416BB2008C5AA9 = {
 						TestTargetID = EE4290EE12B42F870088BD94;
@@ -613,7 +613,6 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ARCHS = "$(ARCHS_STANDARD_INCLUDING_64_BIT)";
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
@@ -644,7 +643,6 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ARCHS = "$(ARCHS_STANDARD_INCLUDING_64_BIT)";
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;