diff --git a/container-optimizer/requirements.txt b/container-optimizer/requirements.txt
index 61c96cf..4886c76 100644
--- a/container-optimizer/requirements.txt
+++ b/container-optimizer/requirements.txt
@@ -116,7 +116,7 @@ tornado==6.0.3
 tqdm==4.31.1
 traitlets==4.3.3
 typing-extensions==3.7.4.1
-urllib3==1.25.8
+urllib3==1.26.5
 wcwidth==0.1.8
 webencodings==0.5.1
 Werkzeug==1.0.0