diff --git a/examples/mssql/requirements.txt b/examples/mssql/requirements.txt
index c0afda6..9b28ebd 100644
--- a/examples/mssql/requirements.txt
+++ b/examples/mssql/requirements.txt
@@ -1,2 +1,3 @@
 rgsync
 pyodbc
+pymongo>=4.6.3 # not directly required, pinned by Snyk to avoid a vulnerability