diff --git a/docs/requirements.txt b/docs/requirements.txt
index 6a88d52..0099c68 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -4,3 +4,6 @@ pydata-sphinx-theme
 numpydoc
 psycopg2
 rdflib
+requests>=2.32.2 # not directly required, pinned by Snyk to avoid a vulnerability
+urllib3>=2.2.2 # not directly required, pinned by Snyk to avoid a vulnerability
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability