diff --git a/requirements.txt b/requirements.txt
index d4adc42..02768f3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -62,7 +62,7 @@ six==1.12.0
 toolz==0.10.0
 transaction==2.4.0
 typed-ast==1.4.0
-urllib3==1.25.3
+urllib3==1.26.5
 web3==4.9.2
 websockets==6.0
 wrapt==1.11.2