diff --git a/requirements.txt b/requirements.txt
index ba6e0ca..1103173 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,6 +21,6 @@ pytest-runner==4.2
 semantic_version==2.6.0
 six==1.10.0
 toolz==0.8.0
-urllib3==1.21.1
+urllib3==1.26.5
 yarl==1.0.0
 web3==4.1.0
\ No newline at end of file