diff --git a/deny.toml b/deny.toml
index c3c0888a..fec28f79 100644
--- a/deny.toml
+++ b/deny.toml
@@ -9,6 +9,7 @@ ignore = [
     "RUSTSEC-2021-0061",
     "RUSTSEC-2021-0145",
     # sodiumoxide is deprecated
+    # https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/issues/530
     "RUSTSEC-2021-0137",
     # proc-macro-error is unmaintained
     # https://github.com/yanganto/test-with/issues/91