diff --git a/requirements.txt b/requirements.txt
index 44791f5..2752397 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,5 +16,5 @@ requests==2.18.1
 rlp==0.5.1
 shellescape==3.4.1
 termcolor==1.1.0
-urllib3==1.21.1
+urllib3==1.26.5
 web3==3.8.1