diff --git a/Cargo.toml b/Cargo.toml
index 891082d..d837408 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,3 +18,4 @@ num-traits = "0.2.15"
 pasta_curves = "0.4.0"
 serde = "1.0"
 serde_json = "1.0.85"
+funty=">1.2"
\ No newline at end of file