diff --git a/requirements.txt b/requirements.txt
index f29c293..5eed910 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,4 +4,8 @@ lifelines==0.27.4
 numba==0.56.4
 numpy-indexed==0.3.5
 reliability==0.8.6
-matplotlib==3.6
\ No newline at end of file
+matplotlib==3.6
+fonttools>=4.43.0 # not directly required, pinned by Snyk to avoid a vulnerability
+numpy>=1.22.2 # not directly required, pinned by Snyk to avoid a vulnerability
+pillow>=10.3.0 # not directly required, pinned by Snyk to avoid a vulnerability
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file