diff --git a/Cargo.toml b/Cargo.toml
index 48a32ccd..6eac15f6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,6 +27,7 @@ fpe = "0.4"
 group = "0.9"
 rand = "0.8"
 nonempty = "0.6"
+rand = "0.8"
 subtle = "2.3"
 
 [dependencies.halo2]