diff --git a/requirements.txt b/requirements.txt
index a0e7953d14..6054d52b20 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -66,3 +66,5 @@ Unidecode>=1.3.4
 weasyprint>=53
 xml2rfc>=3.12.4
 xym>=0.6,<1.0
+fonttools>=4.61.0 # not directly required, pinned by Snyk to avoid a vulnerability
+urllib3>=2.6.0 # not directly required, pinned by Snyk to avoid a vulnerability