diff --git a/NetNewsWire.xcodeproj/project.pbxproj b/NetNewsWire.xcodeproj/project.pbxproj
index c4e9302b7..3dcb302f4 100644
--- a/NetNewsWire.xcodeproj/project.pbxproj
+++ b/NetNewsWire.xcodeproj/project.pbxproj
@@ -2032,6 +2032,7 @@
 			developmentRegion = English;
 			hasScannedForEncodings = 0;
 			knownRegions = (
+				English,
 				en,
 				Base,
 			);
@@ -3423,7 +3424,6 @@
 			buildSettings = {
 				DEVELOPMENT_TEAM = M8L2WTLA8W;
 				MACOSX_DEPLOYMENT_TARGET = 10.13;
-				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -3433,7 +3433,6 @@
 			buildSettings = {
 				DEVELOPMENT_TEAM = M8L2WTLA8W;
 				MACOSX_DEPLOYMENT_TARGET = 10.13;
-				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
diff --git a/xcconfig/NetNewsWire_project.xcconfig b/xcconfig/NetNewsWire_project.xcconfig
index a982e1b19..8a8eb6ad4 100644
--- a/xcconfig/NetNewsWire_project.xcconfig
+++ b/xcconfig/NetNewsWire_project.xcconfig
@@ -38,4 +38,4 @@ CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR
 CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES
 CLANG_ANALYZER_NONNULL = YES
 SWIFT_SWIFT3_OBJC_INFERENCE = Off
-SWIFT_VERSION = 4.0
+SWIFT_VERSION = 5.0