diff --git a/AoC21.xcodeproj/project.pbxproj b/AoC21.xcodeproj/project.pbxproj
index 05ac05b..614d3a5 100644
--- a/AoC21.xcodeproj/project.pbxproj
+++ b/AoC21.xcodeproj/project.pbxproj
@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 55;
+	objectVersion = 53;
 	objects = {
 
 /* Begin PBXBuildFile section */
@@ -476,6 +476,7 @@
 				BuildIndependentTargetsInParallel = 1;
 				LastSwiftUpdateCheck = 1320;
 				LastUpgradeCheck = 1310;
+				ORGANIZATIONNAME = 5sw;
 				TargetAttributes = {
 					26155451276A6C1C00374D18 = {
 						CreatedOnToolsVersion = 13.1;
@@ -520,7 +521,7 @@
 				};
 			};
 			buildConfigurationList = 263BA598275E974800839C92 /* Build configuration list for PBXProject "AoC21" */;
-			compatibilityVersion = "Xcode 13.0";
+			compatibilityVersion = "Xcode 11.4";
 			developmentRegion = en;
 			hasScannedForEncodings = 0;
 			knownRegions = (