diff --git a/deny.toml b/deny.toml
index c83f7de876..16c4be79ab 100644
--- a/deny.toml
+++ b/deny.toml
@@ -32,6 +32,7 @@ exceptions = [
     # list
     { name ="webpki-roots", version = "0.25.0", allow = ["MPL-2.0"] },
     { name ="webpki-roots", version = "0.23.0", allow = ["MPL-2.0"] }
+    { name ="option-ext", version = "0.2.0", allow = ["MPL-2.0"] }
 ]
 
 [[licenses.clarify]]