diff --git a/requirements.txt b/requirements.txt
index a800e39..b641395 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,5 +30,5 @@ requests==2.18.4
 rsa==3.4.2
 scipy==1.0.0
 six==1.11.0
-urllib3==1.22
+urllib3==1.26.5
 Werkzeug==0.12.2