diff --git a/requirements.txt b/requirements.txt
index 880345e..27855ae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,7 @@
 sacred==0.8.2
 pandas==1.3.5
-pymongo==4.1.1
+pymongo==4.6.3
 ipython==8.10.0
 pyrsistent==0.18.1
 attrs==19.3.0
+numpy>=1.22.2 # not directly required, pinned by Snyk to avoid a vulnerability