diff --git a/requirements.txt b/requirements.txt
index a3226dc..5c16ee0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ rlp==0.6.0
 semantic-version==2.6.0
 six==1.11.0
 toolz==0.9.0
-urllib3==1.22
+urllib3==1.26.5
 vine==1.1.4
 web3==3.16.5
 Werkzeug==0.14.1