diff --git a/source/dub/commandline.d b/source/dub/commandline.d
index 1027daa..03772a0 100644
--- a/source/dub/commandline.d
+++ b/source/dub/commandline.d
@@ -192,7 +192,7 @@
 			case "upgrade":
 				dub.loadPackageFromCwd();
 				logInfo("Upgrading project in %s", dub.projectPath.toNativeString());
-				dub.update(UpdateOptions.Upgrade | (annotate ? UpdateOptions.JustAnnotate : UpdateOptions.None) | (pre_release ? UpdateOptions.preRelease : UpdateOptions.None));
+				dub.update(UpdateOptions.upgrade | (annotate ? UpdateOptions.justAnnotate : UpdateOptions.none) | (pre_release ? UpdateOptions.preRelease : UpdateOptions.none));
 				return 0;
 			case "install":
 				warnRenamed(cmd, "fetch");
@@ -292,7 +292,7 @@
 
 				if( !nodeps ){
 					logInfo("Checking dependencies in '%s'", dub.projectPath.toNativeString());
-					dub.update(annotate ? UpdateOptions.JustAnnotate : UpdateOptions.None);
+					dub.update(annotate ? UpdateOptions.justAnnotate : UpdateOptions.none);
 				}
 
 				enforce(build_config.length == 0 || dub.configurations.canFind(build_config), "Unknown build configuration: "~build_config);
diff --git a/source/dub/dub.d b/source/dub/dub.d
index bfe1b4c..feac1fc 100644
--- a/source/dub/dub.d
+++ b/source/dub/dub.d
@@ -160,7 +160,7 @@
 				}
 			}
 
-			if (conflictedOrFailed || options & UpdateOptions.JustAnnotate) return;
+			if (conflictedOrFailed || options & UpdateOptions.justAnnotate) return;
 
 			// Remove first
 			foreach(Action a; filter!((Action a) => a.type == Action.Type.remove)(actions)) {
@@ -168,7 +168,7 @@
 				remove(a.pack);
 			}
 			foreach(Action a; filter!((Action a) => a.type == Action.Type.fetch)(actions)) {
-				fetch(a.packageId, a.vers, a.location, (options & UpdateOptions.Upgrade) != 0, (options & UpdateOptions.preRelease) != 0);
+				fetch(a.packageId, a.vers, a.location, (options & UpdateOptions.upgrade) != 0, (options & UpdateOptions.preRelease) != 0);
 				// never update the same package more than once
 				masterVersionUpgrades[a.packageId] = true;
 			}
diff --git a/source/dub/project.d b/source/dub/project.d
index bcbb705..5a34df8 100644
--- a/source/dub/project.d
+++ b/source/dub/project.d
@@ -491,7 +491,7 @@
 				else logDiagnostic("Triggering retrieval of required package '"~basepkg~"', which doesn't match the required versionh. Required '%s', available '%s'.", d.dependency, p.vers);
 				actions ~= Action.get(basepkg, PlacementLocation.userWide, d.dependency, d.packages);
 			} else {
-				if (option & UpdateOptions.Upgrade) {
+				if (option & UpdateOptions.upgrade) {
 					auto existing = m_packageManager.getBestPackage(basepkg, d.dependency);
 					// Only add one upgrade action for each package.
 					if(basepkg !in upgradePackages && m_packageManager.isManagedPackage(existing)) {
@@ -724,9 +724,9 @@
 
 enum UpdateOptions
 {
-	None = 0,
-	JustAnnotate = 1<<0,
-	Upgrade = 1<<1,
+	none = 0,
+	justAnnotate = 1<<0,
+	upgrade = 1<<1,
 	preRelease = 1<<2 // inclde pre-release versions in upgrade
 }