diff --git a/requirements.txt b/requirements.txt
index 7964b28e3c..14b8f89793 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,6 +32,6 @@ stix2-patterns==1.3.0
 taxii2-client==2.0.0
 toml==0.10.0
 typing==3.7.4.1
-urllib3==1.25.9
+urllib3==1.26.18
 virtualenv==20.0.21
 zipp==3.1.0