diff --git a/examples/clustering_users/clustering_requirements.txt b/examples/clustering_users/clustering_requirements.txt
index fc4304d..8b28a45 100644
--- a/examples/clustering_users/clustering_requirements.txt
+++ b/examples/clustering_users/clustering_requirements.txt
@@ -61,7 +61,7 @@ testpath==0.3.1
 tornado==4.5.2
 traitlets==4.3.2
 tweet-parser==1.11.0
-urllib3==1.22
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.0.6