diff --git a/requirements.txt b/requirements.txt
index 8c0f7bb88f..4877ab6cc0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,3 +25,4 @@ publicsuffixlist>=0.9.3,<0.10
 openpyxl>=3.1.1,<4
 pyyaml>=6.0.0,<7
 wappalyzer @ git+https://github.com/kost/wappalyzer-next@fix-main-argparse
+h11>=0.16.0 # not directly required, pinned by Snyk to avoid a vulnerability