diff --git a/keycloak/exceptions.py b/keycloak/exceptions.py
index 381d9af..67da62a 100644
--- a/keycloak/exceptions.py
+++ b/keycloak/exceptions.py
@@ -53,6 +53,9 @@ class KeycloakOperationError(KeycloakError):
     pass
 
 
+class KeycloakDeprecationError(KeycloakError):
+    pass
+
 class KeycloakGetError(KeycloakOperationError):
     pass