diff --git a/src/Umbraco.Core/Services/ContentService.cs b/src/Umbraco.Core/Services/ContentService.cs
index 5e3d17c75d..c0661ac272 100644
--- a/src/Umbraco.Core/Services/ContentService.cs
+++ b/src/Umbraco.Core/Services/ContentService.cs
@@ -1186,7 +1186,7 @@ namespace Umbraco.Core.Services
 
         /// <summary>
         /// Sorts a collection of <see cref="IContent"/> objects by updating the SortOrder according
-        /// to the ordering of items in the passed in <see cref="SortedSet{T}"/>.
+        /// to the ordering of items in the passed in <see cref="IEnumerable{T}"/>.
         /// </summary>
         /// <remarks>
         /// Using this method will ensure that the Published-state is maintained upon sorting
@@ -1196,7 +1196,7 @@ namespace Umbraco.Core.Services
         /// <param name="userId"></param>
         /// <param name="raiseEvents"></param>
         /// <returns>True if sorting succeeded, otherwise False</returns>
-        public bool Sort(SortedSet<IContent> items, int userId = 0, bool raiseEvents = true)
+        public bool Sort(IEnumerable<IContent> items, int userId = 0, bool raiseEvents = true)
         {
             if (raiseEvents)
             {
diff --git a/src/Umbraco.Core/Services/IContentService.cs b/src/Umbraco.Core/Services/IContentService.cs
index 193fc5ff85..6525a9d825 100644
--- a/src/Umbraco.Core/Services/IContentService.cs
+++ b/src/Umbraco.Core/Services/IContentService.cs
@@ -312,7 +312,7 @@ namespace Umbraco.Core.Services
         /// <returns>An Enumerable list of <see cref="IContent"/> objects</returns>
         IEnumerable<IContent> GetAncestors(IContent content);
         /// Sorts a collection of <see cref="IContent"/> objects by updating the SortOrder according
-        /// to the ordering of items in the passed in <see cref="SortedSet{T}"/>.
+        /// to the ordering of items in the passed in <see cref="IEnumerable{T}"/>.
         /// </summary>
         /// <remarks>
         /// Using this method will ensure that the Published-state is maintained upon sorting
@@ -322,7 +322,7 @@ namespace Umbraco.Core.Services
         /// <param name="userId"></param>
         /// <param name="raiseEvents"></param>
         /// <returns>True if sorting succeeded, otherwise False</returns>
-        bool Sort(SortedSet<IContent> items, int userId = 0, bool raiseEvents = true);
+        bool Sort(IEnumerable<IContent> items, int userId = 0, bool raiseEvents = true);
 
         /// <summary>
         /// Gets the parent of the current content as an <see cref="IContent"/> item.
diff --git a/src/Umbraco.Core/Services/IMediaService.cs b/src/Umbraco.Core/Services/IMediaService.cs
index eb3ec8b73f..c8b9db6967 100644
--- a/src/Umbraco.Core/Services/IMediaService.cs
+++ b/src/Umbraco.Core/Services/IMediaService.cs
@@ -232,13 +232,13 @@ namespace Umbraco.Core.Services
 
         /// <summary>
         /// Sorts a collection of <see cref="IMedia"/> objects by updating the SortOrder according
-        /// to the ordering of items in the passed in <see cref="SortedSet{T}"/>.
+        /// to the ordering of items in the passed in <see cref="IEnumerable{T}"/>.
         /// </summary>
         /// <param name="items"></param>
         /// <param name="userId"></param>
         /// <param name="raiseEvents"></param>
         /// <returns>True if sorting succeeded, otherwise False</returns>
-        bool Sort(SortedSet<IMedia> items, int userId = 0, bool raiseEvents = true);
+        bool Sort(IEnumerable<IMedia> items, int userId = 0, bool raiseEvents = true);
 
         /// <summary>
         /// Creates an <see cref="IMedia"/> object using the alias of the <see cref="IMediaType"/>
diff --git a/src/Umbraco.Core/Services/MediaService.cs b/src/Umbraco.Core/Services/MediaService.cs
index 292cb2ca8f..7a09e24b32 100644
--- a/src/Umbraco.Core/Services/MediaService.cs
+++ b/src/Umbraco.Core/Services/MediaService.cs
@@ -764,13 +764,13 @@ namespace Umbraco.Core.Services
 
         /// <summary>
         /// Sorts a collection of <see cref="IMedia"/> objects by updating the SortOrder according
-        /// to the ordering of items in the passed in <see cref="SortedSet{T}"/>.
+        /// to the ordering of items in the passed in <see cref="IEnumerable{T}"/>.
         /// </summary>
         /// <param name="items"></param>
         /// <param name="userId"></param>
         /// <param name="raiseEvents"></param>
         /// <returns>True if sorting succeeded, otherwise False</returns>
-        public bool Sort(SortedSet<IMedia> items, int userId = 0, bool raiseEvents = true)
+        public bool Sort(IEnumerable<IMedia> items, int userId = 0, bool raiseEvents = true)
         {
             if (raiseEvents)
             {