diff --git a/easyci2/flask/requirements.txt b/easyci2/flask/requirements.txt
index dd78195f..d20577b2 100644
--- a/easyci2/flask/requirements.txt
+++ b/easyci2/flask/requirements.txt
@@ -36,7 +36,7 @@ responses==0.13.2
 retrying==1.3.3
 six==1.14.0
 toml==0.10.2
-urllib3==1.26.5
+urllib3==1.26.18
 webencodings==0.5.1
 Werkzeug==1.0.1
 cachetools==4.2.4