diff --git a/src/asquare.py b/src/asquare.py
index 1a36d8c..84541a5 100644
--- a/src/asquare.py
+++ b/src/asquare.py
@@ -314,7 +314,26 @@ async def update_itm(item_id: str, lego_set: dict, item_data: dict = None):
             existing_item_data["name"] = pw_name
             existing_item_data["description"] = f"{set_name} - {set_theme}"
             existing_item_data["category_id"] = category_id
-            existing_item_data["variations"] = [variation_obj]
+
+            # Update only the specific variation, keep all others unchanged
+            existing_variations = existing_item_data.get("variations", [])
+            updated_variations = []
+            variation_found = False
+
+            for existing_var in existing_variations:
+                if existing_var.get("id") == variation_id:
+                    # Replace this variation with our updated one
+                    updated_variations.append(variation_obj)
+                    variation_found = True
+                else:
+                    # Keep other variations as-is
+                    updated_variations.append(existing_var)
+
+            # If variation wasn't found (shouldn't happen), add it
+            if not variation_found and variation_id:
+                updated_variations.append(variation_obj)
+
+            existing_item_data["variations"] = updated_variations
 
             item_obj = {
                 "type": "ITEM",