diff --git a/Cargo.toml b/Cargo.toml
index 48d728b10..98199eb84 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -296,7 +296,7 @@ nix = { version="0.26", default-features=false }
 nom = "7.1.1"
 notify = { version = "=5.0.0", features=["macos_kqueue"]}
 num_cpus = "1.14"
-num-bigint = "0.4.0"
+num-bigint = "0.4.3"
 num-traits = "0.2.15"
 number_prefix = "0.4"
 once_cell = "1.13.1"