diff --git a/binding/ios/CheetahAppTest/CheetahAppTest.xcodeproj/project.pbxproj b/binding/ios/CheetahAppTest/CheetahAppTest.xcodeproj/project.pbxproj
index e13a81a8..e35cbf8a 100644
--- a/binding/ios/CheetahAppTest/CheetahAppTest.xcodeproj/project.pbxproj
+++ b/binding/ios/CheetahAppTest/CheetahAppTest.xcodeproj/project.pbxproj
@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 70;
+	objectVersion = 55;
 	objects = {
 
 /* Begin PBXBuildFile section */