diff --git a/Cargo.lock b/Cargo.lock
index 69f0cb7590..b12326f0a1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -681,9 +681,9 @@ checksum = "72ef4a56884ca558e5ddb05a1d1e7e1bfd9a68d9ed024c21704cc98872dae1bb"
 
 [[package]]
 name = "num-bigint"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7f3fc75e3697059fb1bc465e3d8cca6cf92f56854f201158b3f9c77d5a3cfa0"
+checksum = "5e9a41747ae4633fce5adffb4d2e81ffc5e89593cb19917f8fb2cc5ff76507bf"
 dependencies = [
  "autocfg",
  "num-integer",
diff --git a/boa/Cargo.toml b/boa/Cargo.toml
index 1f43c825f6..ec349423b1 100644
--- a/boa/Cargo.toml
+++ b/boa/Cargo.toml
@@ -23,7 +23,7 @@ rand = "0.7.3"
 num-traits = "0.2.14"
 regress = "0.2.0"
 rustc-hash = "1.1.0"
-num-bigint = { version = "0.3.0", features = ["serde"] }
+num-bigint = { version = "0.3.1", features = ["serde"] }
 num-integer = "0.1.44"
 bitflags = "1.2.1"
 indexmap = "1.6.0"