diff --git a/requirements.txt b/requirements.txt
index 707e64260..4c9dff482 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -75,3 +75,6 @@ django-phonenumber-field==6.1.0
 babel==2.10.1
 git+https://github.com/dbca-wa/webtemplate2.git#egg=webtemplate_dbca
 tqdm==4.64.1
+certifi>=2023.7.22 # not directly required, pinned by Snyk to avoid a vulnerability
+pillow>=9.2.0 # not directly required, pinned by Snyk to avoid a vulnerability
+requests>=2.31.0 # not directly required, pinned by Snyk to avoid a vulnerability