diff --git a/src/caosdb/connection/connection.py b/src/caosdb/connection/connection.py
index a2802848af7bae8fb65378532156d8469f31a9b8..46dadea9dfcfa6e614493b75d709f604aa188ef6 100644
--- a/src/caosdb/connection/connection.py
+++ b/src/caosdb/connection/connection.py
@@ -287,6 +287,8 @@ class _DefaultCaosDBServerConnection(CaosDBServerConnection):
                             "Insecure SSL mode, certificate will not be checked! "
                             "Please consider removing the `ssl_insecure` configuration option.\n"
                             "****************")
+            warnings.filterwarnings(action="ignore", module="urllib3",
+                                    message="Unverified HTTPS request is being made")
             verify = False
         if verify is not None:
             self._session.verify = verify