diff --git a/requirements.txt b/requirements.txt
index 6a378d1..9747ecb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ rlp==1.2.0
 six==1.14.0
 toolz==0.10.0
 typing-extensions==3.7.4.1
-urllib3==1.25.8
+urllib3==1.26.5
 varint==1.0.2
 web3==5.7.0
 websockets==8.1