diff --git a/src/proxy_pool/proxy/router.py b/src/proxy_pool/proxy/router.py
index f74b97e..7cf6915 100644
--- a/src/proxy_pool/proxy/router.py
+++ b/src/proxy_pool/proxy/router.py
@@ -46,7 +46,7 @@ async def create_source(
         registry.get_parser(body.parser_name)
     except Exception:
         raise HTTPException(
-            status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
+            status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
             detail=f"No parser registered with name '{body.parser_name}'",
         ) from None
 
@@ -98,7 +98,7 @@ async def update_source(
             registry.get_parser(update_data["parser_name"])
         except Exception:
             raise HTTPException(
-                status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
+                status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
                 detail=f"No parser registered with name '{update_data['parser_name']}'",
             ) from None