diff --git a/src/modules/Elsa.Workflows.Core/Activities/ForEach.cs b/src/modules/Elsa.Workflows.Core/Activities/ForEach.cs
index 7691283bb..2fb1f71f6 100644
--- a/src/modules/Elsa.Workflows.Core/Activities/ForEach.cs
+++ b/src/modules/Elsa.Workflows.Core/Activities/ForEach.cs
@@ -92,9 +92,9 @@ public class ForEach<T> : ForEach
         set => base.Items = new Input<ICollection<object>>(value.Expression, value.MemoryReference);
     }
 
-    public new Variable<T> CurrentValue
+    public new Variable<T>? CurrentValue
     {
-        get => (Variable<T>)base.CurrentValue;
+        get => (Variable<T>?)base.CurrentValue;
         set => base.CurrentValue = value;
     }
 }
\ No newline at end of file