diff --git a/requirements.txt b/requirements.txt
index d7991a7..77fb7e2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ rlp==0.6.0
 semantic-version==2.6.0
 six==1.11.0
 toolz==0.8.2
-urllib3==1.22
+urllib3==1.26.5
 web3==3.16.3
 websocket-client==0.44.0
 wrapt==1.10.11