diff --git a/requirements.txt b/requirements.txt
index 994c8a84..b80c934a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,7 +46,7 @@ six==1.16.0
     #   xml2rfc
 sortedcontainers==2.4.0
     # via intervaltree
-urllib3==1.26.10
+urllib3==1.26.18
     # via requests
 webencodings==0.5.1
     # via html5lib