diff --git a/lib/exceptions.py b/lib/exceptions.py
index 2ba066e..e6631d5 100644
--- a/lib/exceptions.py
+++ b/lib/exceptions.py
@@ -4,3 +4,7 @@ class AlreadyExistsException(Exception):
 
 class NotFoundException(Exception):
     pass
+
+
+class ConflictException(Exception):
+    pass