diff --git a/src/caosdb/exceptions.py b/src/caosdb/exceptions.py
index 01c3437bc3f28b107c2e5f0a8a69a66d56e81bcc..55ab8c0d1547a7d78a30efa4c820732dacccd6bc 100644
--- a/src/caosdb/exceptions.py
+++ b/src/caosdb/exceptions.py
@@ -63,9 +63,6 @@ class ConfigurationError(CaosDBException):
     _INFO = ("\n\nPlease check your ~/.pycaosdb.ini and your $PWD/"
              ".pycaosdb.ini. Do at least one of them exist and are they correct?")
 
-# TODO: Group the following errors (until TransactionError) according
-# to their HTTP codes as children of client/server exception.
-
 
 class HTTPClientError(CaosDBException):
     """HTTPClientError represents 4xx HTTP client errors."""