diff --git a/Content.Server/GameObjects/ContainerSlot.cs b/Content.Server/GameObjects/ContainerSlot.cs
index 36dd215b5d..61c22cfb0c 100644
--- a/Content.Server/GameObjects/ContainerSlot.cs
+++ b/Content.Server/GameObjects/ContainerSlot.cs
@@ -24,7 +24,7 @@ namespace Content.Server.GameObjects
         private IEntity _containedEntity;
 
         /// <inheritdoc />
-        public override IReadOnlyCollection<IEntity> ContainedEntities
+        public override IReadOnlyList<IEntity> ContainedEntities
         {
             get
             {
diff --git a/RobustToolbox b/RobustToolbox
index d1ee8775f4..6e3b32ed07 160000
--- a/RobustToolbox
+++ b/RobustToolbox
@@ -1 +1 @@
-Subproject commit d1ee8775f4293629ba0c1535c1cff45ea57a55c7
+Subproject commit 6e3b32ed07cfb199ac65b956e8264604d19b2a97