diff --git a/requirements.txt b/requirements.txt
index ab5c9a7..810a39f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ pydantic>=1.8.2;python_version>="3"
 tblib>=1.7.0;python_version>="3"
 throttlex>=1.0.0
 tqdm>=4.62.0;python_version>="3"
+dnspython>=2.6.0rc1 # not directly required, pinned by Snyk to avoid a vulnerability