diff --git a/deny.toml b/deny.toml
index f3101e555..fca869e27 100644
--- a/deny.toml
+++ b/deny.toml
@@ -94,6 +94,7 @@ allow = [
     "BSD-3-Clause",
     "ISC",
     "MIT",
+    "MPL-2.0",
     "Unicode-3.0",
     "Unicode-DFS-2016",
 ]