diff --git a/requirements.txt b/requirements.txt
index b57d336..37b573e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 python_jenkins==1.7.0
 requests==2.24.0
 jenkins==1.0.2
+idna>=3.7 # not directly required, pinned by Snyk to avoid a vulnerability