diff --git a/deny.toml b/deny.toml
index b30bb2181..a030b5c92 100644
--- a/deny.toml
+++ b/deny.toml
@@ -33,3 +33,8 @@ unknown-git = "deny"
 allow-git = [
   "https://github.com/gtk-rs/gtk-rs-core",
 ]
+
+# ignore duplicated heck dependency because various crates depend on an old version
+[[bans.skip]]
+name = "heck"
+version = "0.3"