diff --git a/requirements.txt b/requirements.txt
index c8efe1d..09a2152 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,6 @@ mkdocs-material==9.1.15
 mkdocstrings==0.22.0
 mkdocs-same-dir==0.1.2
 mkdocs-exclude==1.0.2
+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