diff --git a/CHANGES.md b/CHANGES.md
index 5b1363679..5ebcda0d8 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,11 @@
 # CHANGELOG
 
+## 2.1.2
+
+### :bug: Bugs fixed
+
+- User switch language to "zh_hant" will get 400 [Github #4884](https://github.com/penpot/penpot/issues/4884)
+
 ## 2.1.1
 
 ### :sparkles: New features
diff --git a/backend/src/app/rpc/commands/profile.clj b/backend/src/app/rpc/commands/profile.clj
index 40b8b8a43..e3b453e26 100644
--- a/backend/src/app/rpc/commands/profile.clj
+++ b/backend/src/app/rpc/commands/profile.clj
@@ -102,7 +102,7 @@
   (sm/define
     [:map {:title "update-profile"}
      [:fullname [::sm/word-string {:max 250}]]
-     [:lang {:optional true} [:string {:max 5}]]
+     [:lang {:optional true} [:string {:max 8}]]
      [:theme {:optional true} [:string {:max 250}]]]))
 
 (sv/defmethod ::update-profile