diff --git a/backend/open_webui/env.py b/backend/open_webui/env.py
index 9bbf0aecd..86fe78789 100644
--- a/backend/open_webui/env.py
+++ b/backend/open_webui/env.py
@@ -478,7 +478,7 @@ ENABLE_PASSWORD_VALIDATION = (
 )
 PASSWORD_VALIDATION_REGEX_PATTERN = os.environ.get(
     "PASSWORD_VALIDATION_REGEX_PATTERN",
-    "^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[^\w\s]).{8,}$",
+    r"^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[^\w\s]).{8,}$",
 )