diff --git a/requirements.txt b/requirements.txt
index 6eab3154d..d345a3cae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ pyparsing==2.4.7
 six==1.16.0
 toml==0.10.2
 ujson>=2.0.0
-urllib3==1.26.17
+urllib3==1.26.18
 sklearn==0.0
 m2r==0.3.1
 Sphinx==4.0.0