diff --git a/xcode/valijson.xcodeproj/project.pbxproj b/xcode/valijson.xcodeproj/project.pbxproj
index 9c41020..f24f25d 100644
--- a/xcode/valijson.xcodeproj/project.pbxproj
+++ b/xcode/valijson.xcodeproj/project.pbxproj
@@ -951,7 +951,7 @@
 		6AC78AC517C5FBBC00674114 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0630;
+				LastUpgradeCheck = 0720;
 				ORGANIZATIONNAME = "Tristan Penman";
 				TargetAttributes = {
 					6AEFECC71AB53F1000275614 = {
@@ -1122,6 +1122,7 @@
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
+				ENABLE_TESTABILITY = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_DYNAMIC_NO_PIC = NO;
 				GCC_ENABLE_OBJC_EXCEPTIONS = YES;
@@ -1198,19 +1199,11 @@
 		6AEFECCA1AB53F1000275614 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
-				COMBINE_HIDPI_IMAGES = YES;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				EXECUTABLE_PREFIX = lib;
-				GCC_PREPROCESSOR_DEFINITIONS = (
-					"DEBUG=1",
-					"$(inherited)",
-				);
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
@@ -1220,7 +1213,6 @@
 					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
 					"../thirdparty/jsoncpp-0.9.4/include",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				WARNING_CFLAGS = "-Wno-shorten-64-to-32";
@@ -1230,16 +1222,10 @@
 		6AEFECCB1AB53F1000275614 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
-				COMBINE_HIDPI_IMAGES = YES;
-				COPY_PHASE_STRIP = NO;
-				ENABLE_NS_ASSERTIONS = NO;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				EXECUTABLE_PREFIX = lib;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
@@ -1250,7 +1236,6 @@
 					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
 					"../thirdparty/jsoncpp-0.9.4/include",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				WARNING_CFLAGS = "-Wno-shorten-64-to-32";