diff --git a/requirements.txt b/requirements.txt
index 48b4591..fa12b8b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,3 +25,4 @@ numba==0.58.1
 # Development Tools
 setuptools>=70.0.0
 
+urllib3>=2.6.3 # not directly required, pinned by Snyk to avoid a vulnerability