diff --git a/src/app/VersionsManager.cs b/src/app/VersionsManager.cs
index 0e60130..25a1d74 100644
--- a/src/app/VersionsManager.cs
+++ b/src/app/VersionsManager.cs
@@ -24,7 +24,7 @@ public VersionsManager(string phpBaseDir, IEnumerable<IProcessManager> serverMan
 			this.switchToSuccess = true;
 		}
 
-		public SortedSet<Version> GetAvailable()
+		public IEnumerable<Version> GetAvailable()
 		{
 			var versions = new SortedSet<Version>();