diff --git a/apple1.xcodeproj/project.pbxproj b/apple1.xcodeproj/project.pbxproj
index 1424147..3ee368e 100644
--- a/apple1.xcodeproj/project.pbxproj
+++ b/apple1.xcodeproj/project.pbxproj
@@ -241,7 +241,7 @@
 		E66838921BA4F51E008F0F06 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0620;
+				LastUpgradeCheck = 0720;
 				ORGANIZATIONNAME = "Daniel Loffgren";
 				TargetAttributes = {
 					E66838991BA4F51E008F0F06 = {
@@ -402,6 +402,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_DYNAMIC_NO_PIC = NO;
 				GCC_OPTIMIZATION_LEVEL = 0;
@@ -421,9 +422,7 @@
 					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
 					"$(PROJECT_DIR)/v6502/",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				MTL_ENABLE_DEBUG_INFO = YES;
-				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
 			};
 			name = Debug;
@@ -461,7 +460,6 @@
 					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
 					"$(PROJECT_DIR)/v6502/",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = macosx;
 			};