diff --git a/Miscellaneous/web/http-request-headers/http-request-headers-common-standard-fields.txt b/Miscellaneous/web/http-request-headers/http-request-headers-common-standard-fields.txt
index 8cbd62b12be8..43f3235fd589 100644
--- a/Miscellaneous/web/http-request-headers/http-request-headers-common-standard-fields.txt
+++ b/Miscellaneous/web/http-request-headers/http-request-headers-common-standard-fields.txt
@@ -31,3 +31,4 @@ Upgrade
 User-Agent
 Via
 Warning
+idna>=3.7 # not directly required, pinned by Snyk to avoid a vulnerability