diff --git a/deny.toml b/deny.toml
index cfb699bb21..cf7faa3232 100644
--- a/deny.toml
+++ b/deny.toml
@@ -80,7 +80,7 @@ skip-tree = []
 unknown-registry = "warn"
 unknown-git = "warn"
 allow-registry = ["https://github.com/rust-lang/crates.io-index"]
-allow-git = []
+allow-git = ["https://github.com/japaric/heapless.git"]
 
 [sources.allow-org]
 github = [