diff --git a/Persephone.xcodeproj/project.pbxproj b/Persephone.xcodeproj/project.pbxproj
index 5721535..a9895ec 100644
--- a/Persephone.xcodeproj/project.pbxproj
+++ b/Persephone.xcodeproj/project.pbxproj
@@ -646,7 +646,7 @@
 				TargetAttributes = {
 					E40786172110CE6E006887B1 = {
 						CreatedOnToolsVersion = 9.4.1;
-						LastSwiftMigration = 1010;
+						LastSwiftMigration = 1020;
 						SystemCapabilities = {
 							com.apple.Sandbox = {
 								enabled = 0;
@@ -655,12 +655,12 @@
 					};
 					E40786292110CE70006887B1 = {
 						CreatedOnToolsVersion = 9.4.1;
-						LastSwiftMigration = 1010;
+						LastSwiftMigration = 1020;
 						TestTargetID = E40786172110CE6E006887B1;
 					};
 					E40786342110CE70006887B1 = {
 						CreatedOnToolsVersion = 9.4.1;
-						LastSwiftMigration = 1010;
+						LastSwiftMigration = 1020;
 						TestTargetID = E40786172110CE6E006887B1;
 					};
 				};
@@ -981,7 +981,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = me.danbarber.Persephone;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				SYSTEM_HEADER_SEARCH_PATHS = Persephone/include;
 				USER_HEADER_SEARCH_PATHS = libmpdclient/output;
 			};
@@ -1012,7 +1012,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = me.danbarber.Persephone;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				SYSTEM_HEADER_SEARCH_PATHS = Persephone/include;
 				USER_HEADER_SEARCH_PATHS = libmpdclient/output;
 			};
@@ -1040,7 +1040,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = me.danbarber.PersephoneTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				SYSTEM_HEADER_SEARCH_PATHS = Persephone/include;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Persephone.app/Contents/MacOS/Persephone";
 				USER_HEADER_SEARCH_PATHS = libmpdclient/output;
@@ -1069,7 +1069,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = me.danbarber.PersephoneTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				SYSTEM_HEADER_SEARCH_PATHS = Persephone/include;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Persephone.app/Contents/MacOS/Persephone";
 				USER_HEADER_SEARCH_PATHS = libmpdclient/output;
@@ -1093,7 +1093,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = me.danbarber.PersephoneUITests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TEST_TARGET_NAME = Persephone;
 			};
 			name = Debug;
@@ -1115,7 +1115,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = me.danbarber.PersephoneUITests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TEST_TARGET_NAME = Persephone;
 			};
 			name = Release;