diff --git a/requirements.txt b/requirements.txt
index 47242f1..9db5ae9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,3 +4,4 @@ vfb_connect
 mdutils
 fsspec
 pysolr
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability