diff --git a/general/calculate-directory-size/requirements.txt b/general/calculate-directory-size/requirements.txt
index 4b43f7e6..e621b18b 100644
--- a/general/calculate-directory-size/requirements.txt
+++ b/general/calculate-directory-size/requirements.txt
@@ -1 +1,2 @@
-matplotlib
\ No newline at end of file
+matplotlib
+numpy>=1.22.2 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file