diff --git a/requirements.txt b/requirements.txt
index 0ec3a980f8..de87ef5558 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,3 +24,4 @@ pillow>=10.3.0 # not directly required, pinned by Snyk to avoid a vulnerability
 setuptools>=78.1.1 # not directly required, pinned by Snyk to avoid a vulnerability
 fonttools>=4.43.0 # not directly required, pinned by Snyk to avoid a vulnerability
 zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability
+h11>=0.16.0 # not directly required, pinned by Snyk to avoid a vulnerability