diff --git a/requirements.txt b/requirements.txt
index a9df722..c853a30 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,7 +46,7 @@ six==1.11.0
 toolz==0.9.0
 traitlets==4.3.2
 trie==1.3.1
-urllib3==1.22
+urllib3==1.26.5
 wcwidth==0.1.7
 -e git+https://github.com/ethereum/web3.py.git@v4.0.0-beta.12#egg=web3
 yarl==1.1.1