diff --git a/requirements.txt b/requirements.txt
index abe4d14..ad9da43 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ six==1.15.0
 transaction==3.0.1
 translationstring==1.4
 ujson==4.0.2
-urllib3==1.26.2
+urllib3==1.26.3
 venusian==3.0.0
 waitress==1.4.4
 WebOb==1.8.6