diff --git a/requirements.txt b/requirements.txt
index 804dd52..adcef1f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,4 +5,5 @@ aiocontextvars==0.2.2
 grpcio
 brotli
 eciespy
-orjson
\ No newline at end of file
+orjson
+pymongo>=4.6.3 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file