diff --git a/frappe/exceptions.py b/frappe/exceptions.py
index 6a2494c20c..8449425bc1 100644
--- a/frappe/exceptions.py
+++ b/frappe/exceptions.py
@@ -101,8 +101,8 @@ class DataTooLongException(ValidationError): pass
 class FileAlreadyAttachedException(Exception): pass
 class DocumentAlreadyRestored(ValidationError): pass
 class AttachmentLimitReached(ValidationError): pass
-class QueryTimeoutError(ValidationError): pass
-class QueryDeadlockError(ValidationError): pass
+class QueryTimeoutError(Exception): pass
+class QueryDeadlockError(Exception): pass
 # OAuth exceptions
 class InvalidAuthorizationHeader(CSRFTokenError): pass
 class InvalidAuthorizationPrefix(CSRFTokenError): pass