diff --git a/requirements.txt b/requirements.txt
index 9a3fce0..f1f6399 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,3 +4,8 @@ pandas
 xlrd
 matplotlib
 codeclimate-test-reporter
+certifi>=2023.7.22 # not directly required, pinned by Snyk to avoid a vulnerability
+idna>=3.7 # not directly required, pinned by Snyk to avoid a vulnerability
+numpy>=1.21.0rc1 # not directly required, pinned by Snyk to avoid a vulnerability
+requests>=2.31.0 # not directly required, pinned by Snyk to avoid a vulnerability
+setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability