diff --git a/SwiftyJSON.xcodeproj/project.pbxproj b/SwiftyJSON.xcodeproj/project.pbxproj
index f3628d27..e55c2110 100644
--- a/SwiftyJSON.xcodeproj/project.pbxproj
+++ b/SwiftyJSON.xcodeproj/project.pbxproj
@@ -426,9 +426,11 @@
 				TargetAttributes = {
 					2E4FEFDA19575BE100351305 = {
 						CreatedOnToolsVersion = 6.0;
+						LastSwiftMigration = 0800;
 					};
 					2E4FEFE519575BE100351305 = {
 						CreatedOnToolsVersion = 6.0;
+						LastSwiftMigration = 0800;
 						TestTargetID = 2E4FEFDA19575BE100351305;
 					};
 					9C7DFC5A1A9102BD005AA3F7 = {
@@ -742,6 +744,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.swiftyjson.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = SwiftyJSON;
 				SKIP_INSTALL = YES;
+				SWIFT_VERSION = 2.3;
 			};
 			name = Debug;
 		};
@@ -763,6 +766,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.swiftyjson.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = SwiftyJSON;
 				SKIP_INSTALL = YES;
+				SWIFT_VERSION = 2.3;
 			};
 			name = Release;
 		};
@@ -779,6 +783,7 @@
 				METAL_ENABLE_DEBUG_INFO = YES;
 				PRODUCT_BUNDLE_IDENTIFIER = "com.swiftyjson.${PRODUCT_NAME:rfc1034identifier}";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 2.3;
 			};
 			name = Debug;
 		};
@@ -791,6 +796,7 @@
 				METAL_ENABLE_DEBUG_INFO = NO;
 				PRODUCT_BUNDLE_IDENTIFIER = "com.swiftyjson.${PRODUCT_NAME:rfc1034identifier}";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 2.3;
 			};
 			name = Release;
 		};