diff --git a/SwiftProtobuf.xcodeproj/project.pbxproj b/SwiftProtobuf.xcodeproj/project.pbxproj
index 3e1978c17..30a45a085 100644
--- a/SwiftProtobuf.xcodeproj/project.pbxproj
+++ b/SwiftProtobuf.xcodeproj/project.pbxproj
@@ -1241,7 +1241,7 @@
 				__src_cc_ref_Sources/Protobuf/ProtobufUnknown.swift /* UnknownStorage.swift in Sources */,
 				9C75F8801DDBE0DE005CCFF2 /* Visitor.swift in Sources */,
 				AAF2ED441DEF6C48007B510F /* ProtoNameResolvers.swift in Sources */,
-                                __src_cc_ref_Sources/Protobuf/source_context.pb.swift /* source_context.pb.swift in Sources */,
+				__src_cc_ref_Sources/Protobuf/source_context.pb.swift /* source_context.pb.swift in Sources */,
 				__src_cc_ref_Sources/Protobuf/timestamp.pb.swift /* timestamp.pb.swift in Sources */,
 				AA28A4A61DA30E5900C866D9 /* ZigZag.swift in Sources */,
 				9C75F8941DDD3D20005CCFF2 /* ProtobufEncodingVisitor.swift in Sources */,
@@ -1583,6 +1583,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.apple.protobuf.SwiftProtobufTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = iphoneos;
+				SWIFT_VERSION = 3.0.1;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
@@ -1596,6 +1597,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.apple.protobuf.SwiftProtobufTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = iphoneos;
+				SWIFT_VERSION = 3.0.1;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Release;
@@ -1613,6 +1615,7 @@
 				PRODUCT_NAME = SwiftProtobuf;
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = "iphonesimulator iphoneos";
+				SWIFT_VERSION = 3.0.1;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
@@ -1630,6 +1633,7 @@
 				PRODUCT_NAME = SwiftProtobuf;
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = "iphonesimulator iphoneos";
+				SWIFT_VERSION = 3.0.1;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Release;
@@ -1646,6 +1650,7 @@
 				PRODUCT_MODULE_NAME = SwiftProtobuf;
 				PRODUCT_NAME = SwiftProtobuf;
 				SDKROOT = appletvos;
+				SWIFT_VERSION = 3.0.1;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
@@ -1663,6 +1668,7 @@
 				PRODUCT_MODULE_NAME = SwiftProtobuf;
 				PRODUCT_NAME = SwiftProtobuf;
 				SDKROOT = appletvos;
+				SWIFT_VERSION = 3.0.1;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
@@ -1677,6 +1683,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.apple.protobuf.SwiftProtobufTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = appletvos;
+				SWIFT_VERSION = 3.0.1;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
 			name = Debug;
@@ -1690,6 +1697,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.apple.protobuf.SwiftProtobufTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = appletvos;
+				SWIFT_VERSION = 3.0.1;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
 			name = Release;
@@ -1706,6 +1714,7 @@
 				PRODUCT_MODULE_NAME = SwiftProtobuf;
 				PRODUCT_NAME = SwiftProtobuf;
 				SDKROOT = watchos;
+				SWIFT_VERSION = 3.0.1;
 				TARGETED_DEVICE_FAMILY = 4;
 				WATCHOS_DEPLOYMENT_TARGET = 2.0;
 			};
@@ -1723,6 +1732,7 @@
 				PRODUCT_MODULE_NAME = SwiftProtobuf;
 				PRODUCT_NAME = SwiftProtobuf;
 				SDKROOT = watchos;
+				SWIFT_VERSION = 3.0.1;
 				TARGETED_DEVICE_FAMILY = 4;
 				WATCHOS_DEPLOYMENT_TARGET = 2.0;
 			};
@@ -1738,6 +1748,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.apple.protobuf.SwiftProtobuf;
 				PRODUCT_MODULE_NAME = SwiftProtobuf;
 				PRODUCT_NAME = SwiftProtobuf;
+				SWIFT_VERSION = 3.0.1;
 			};
 			name = Release;
 		};
@@ -1747,6 +1758,7 @@
 				INFOPLIST_FILE = SwiftProtobuf.xcodeproj/ProtobufTestSuite_Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "@loader_path/../Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.apple.protobuf.SwiftProtobufTests;
+				SWIFT_VERSION = 3.0.1;
 			};
 			name = Release;
 		};
@@ -1760,6 +1772,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.apple.protobuf.SwiftProtobuf;
 				PRODUCT_MODULE_NAME = SwiftProtobuf;
 				PRODUCT_NAME = SwiftProtobuf;
+				SWIFT_VERSION = 3.0.1;
 			};
 			name = Debug;
 		};
@@ -1769,6 +1782,7 @@
 				INFOPLIST_FILE = SwiftProtobuf.xcodeproj/ProtobufTestSuite_Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "@loader_path/../Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.apple.protobuf.SwiftProtobufTests;
+				SWIFT_VERSION = 3.0.1;
 			};
 			name = Debug;
 		};
@@ -1808,7 +1822,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_TREAT_WARNINGS_AS_ERRORS = YES;
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 3.0.1;
 				USE_HEADERMAP = NO;
 				VALIDATE_PRODUCT = YES;
 			};
@@ -1857,7 +1871,7 @@
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_TREAT_WARNINGS_AS_ERRORS = YES;
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 3.0.1;
 				USE_HEADERMAP = NO;
 			};
 			name = Debug;