diff --git a/reference/docs-conceptual/learn/deep-dives/everything-about-hashtable.md b/reference/docs-conceptual/learn/deep-dives/everything-about-hashtable.md
index 756aeaf39f3..e4ddf78701b 100644
--- a/reference/docs-conceptual/learn/deep-dives/everything-about-hashtable.md
+++ b/reference/docs-conceptual/learn/deep-dives/everything-about-hashtable.md
@@ -1,7 +1,7 @@
 ---
 description: Hashtables are really important in PowerShell so it's good to have a solid understanding of them.
 ms.custom: contributor-KevinMarquette
-ms.date: 06/25/2023
+ms.date: 10/22/2025
 title: Everything you wanted to know about hashtables
 ---
 # Everything you wanted to know about hashtables
@@ -269,6 +269,16 @@ $environments.Keys.Clone() | ForEach-Object {
 }
 ```
 
+> [!NOTE]
+> You can't clone a hashtable containing a single key. PowerShell throws an error. Instead, you
+> convert the **Keys** property to an array, then iterate over the array.
+
+```powershell
+@($environments.Keys) | ForEach-Object {
+    $environments[$_] = 'SrvDev03'
+}
+```
+
 ## Hashtable as a collection of properties
 
 So far the type of objects we placed in our hashtable were all the same type of object. I used ages