diff --git a/CouchbaseLite.xcodeproj/project.pbxproj b/CouchbaseLite.xcodeproj/project.pbxproj
index 173e8960f..ddb18c800 100644
--- a/CouchbaseLite.xcodeproj/project.pbxproj
+++ b/CouchbaseLite.xcodeproj/project.pbxproj
@@ -3734,6 +3734,7 @@
 			developmentRegion = English;
 			hasScannedForEncodings = 0;
 			knownRegions = (
+				English,
 				en,
 				Base,
 			);
@@ -4966,7 +4967,6 @@
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OBJC_BRIDGING_HEADER = "Swift/Tests/CBL Swift Tests-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
 			};
 			name = Debug;
 		};
@@ -5015,7 +5015,6 @@
 				PRODUCT_NAME = CouchbaseLiteSwiftTests;
 				SWIFT_OBJC_BRIDGING_HEADER = "Swift/Tests/CBL Swift Tests-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 3.0;
 			};
 			name = Release;
 		};
@@ -5218,7 +5217,6 @@
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OBJC_BRIDGING_HEADER = "Swift/Tests/CBL Swift Tests-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
 			};
 			name = "Debug-EE";
 		};
@@ -5377,7 +5375,6 @@
 				PRODUCT_NAME = CouchbaseLiteSwiftTests;
 				SWIFT_OBJC_BRIDGING_HEADER = "Swift/Tests/CBL Swift Tests-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 3.0;
 			};
 			name = "Release-EE";
 		};
@@ -5683,7 +5680,6 @@
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OBJC_BRIDGING_HEADER = "Swift/Tests/CBL Swift Tests-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
 			};
 			name = Debug;
 		};
@@ -5739,7 +5735,6 @@
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OBJC_BRIDGING_HEADER = "Swift/Tests/CBL Swift Tests-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
 			};
 			name = "Debug-EE";
 		};
@@ -5788,7 +5783,6 @@
 				PRODUCT_NAME = CouchbaseLiteSwiftTests;
 				SWIFT_OBJC_BRIDGING_HEADER = "Swift/Tests/CBL Swift Tests-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 3.0;
 			};
 			name = Release;
 		};
@@ -5837,7 +5831,6 @@
 				PRODUCT_NAME = CouchbaseLiteSwiftTests;
 				SWIFT_OBJC_BRIDGING_HEADER = "Swift/Tests/CBL Swift Tests-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 3.0;
 			};
 			name = "Release-EE";
 		};