diff --git a/requirements.txt b/requirements.txt
index 37bd8c1..7fcefca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 asyncua==0.9.96
 flatdict==4.0.1
 requests==2.27.1
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability