diff --git a/requirements.txt b/requirements.txt
index d0b544c..1206da4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,3 +6,4 @@ pyyaml
 python-json-logger
 pytz
 httpx[http2]
+anyio>=4.4.0 # not directly required, pinned by Snyk to avoid a vulnerability