diff --git a/src/requirements/base.txt b/src/requirements/base.txt
index e3462d9..731e9f9 100644
--- a/src/requirements/base.txt
+++ b/src/requirements/base.txt
@@ -19,6 +19,6 @@ requests==2.21.0
 rlp==1.1.0
 six==1.12.0
 toolz==0.9.0
-urllib3==1.24.1
+urllib3==1.26.5
 web3==4.8.2
 websockets==6.0