diff --git a/dev-utility/Cargo.toml b/dev-utility/Cargo.toml
index 0889a80..2ca0e54 100644
--- a/dev-utility/Cargo.toml
+++ b/dev-utility/Cargo.toml
@@ -31,7 +31,7 @@ pkcs8 = { version = "0.10", features = ["pem"] }
 pkcs1 = { version = "0.7", features = ["pem"] }
 
 num-bigint = { version = "0.4.6", features = ["serde"] }
-num-bigint-dig = { version = "0.8.4", features = ["serde"] }
+num-bigint-dig = { version = "0.9.1", features = ["serde"] }
 num-integer = { version = "0.1.46" }
 
 # Hash