diff --git a/requirements.txt b/requirements.txt
index 78fd6f1..2f9a475 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,4 +13,5 @@ pandas==1.1.5
 numpy==1.21.4
 nltk==3.6.5
 tokenizers==0.8.1rc1
-statsmodels==0.13.2
\ No newline at end of file
+statsmodels==0.13.2
+protobuf>=5.29.6 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file