diff --git a/Examples/xx-messenger/Project/XXMessenger.xcodeproj/project.pbxproj b/Examples/xx-messenger/Project/XXMessenger.xcodeproj/project.pbxproj
index 8d8c1f48efbdcd6d75ce87e448ac0f0bb8e40441..81c543498d89798788e84ea53d7c4730d3304585 100644
--- a/Examples/xx-messenger/Project/XXMessenger.xcodeproj/project.pbxproj
+++ b/Examples/xx-messenger/Project/XXMessenger.xcodeproj/project.pbxproj
@@ -165,7 +165,7 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 3;
+				CURRENT_PROJECT_VERSION = 4;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@@ -228,7 +228,7 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 3;
+				CURRENT_PROJECT_VERSION = 4;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;