diff --git a/Cargo.toml b/Cargo.toml
index 6a81047b9e0..6f5f1469fe2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ authors = ["Anshul Malik <malikanshul29@gmail.com>"]
 [dependencies]
 nalgebra = "0.34.0"
 ndarray = "0.17.2"
-num-bigint = { version = "0.4", optional = true }
+num-bigint = { version = "0.5", optional = true }
 num-traits = { version = "0.2", optional = true }
 rand = "0.10.1"