diff --git a/Example/AFNetworking Mac Example.xcodeproj/project.pbxproj b/Example/AFNetworking Mac Example.xcodeproj/project.pbxproj
index 7a07baac7a..abf8fe5869 100644
--- a/Example/AFNetworking Mac Example.xcodeproj/project.pbxproj	
+++ b/Example/AFNetworking Mac Example.xcodeproj/project.pbxproj	
@@ -227,7 +227,7 @@
 		F8129BF21591061B009BFE23 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0510;
+				LastUpgradeCheck = 0610;
 			};
 			buildConfigurationList = F8129BF51591061B009BFE23 /* Build configuration list for PBXProject "AFNetworking Mac Example" */;
 			compatibilityVersion = "Xcode 3.2";
@@ -293,8 +293,10 @@
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_DYNAMIC_NO_PIC = NO;
 				GCC_ENABLE_OBJC_EXCEPTIONS = YES;
@@ -327,9 +329,11 @@
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = YES;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_ENABLE_OBJC_EXCEPTIONS = YES;
 				GCC_VERSION = com.apple.compilers.llvm.clang.1_0;