diff --git a/Cargo.lock b/Cargo.lock
index 0845c7116..5cb3573b2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -168,9 +168,9 @@ dependencies = [
 
 [[package]]
 name = "num-bigint"
-version = "0.4.3"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f93ab6289c7b344a8a9f60f88d80aa20032336fe78da341afc91c8a2341fc75f"
+checksum = "608e7659b5c3d7cba262d894801b9ec9d00de989e8a82bd4bef91d08da45cdc0"
 dependencies = [
  "autocfg",
  "num-integer",
@@ -189,9 +189,9 @@ dependencies = [
 
 [[package]]
 name = "num-traits"
-version = "0.2.15"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
+checksum = "f30b0abd723be7e2ffca1272140fac1a2f084c77ec3e123c192b66af1ee9e6c2"
 dependencies = [
  "autocfg",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 296258def..e7a533605 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -40,7 +40,7 @@ url = "2.4.1"
 # idna is already required by url, added here to be explicit
 idna = "0.4.0"
 base64 = "0.21.3"
-num-bigint = "0.4.3"
+num-bigint = "0.4.4"
 python3-dll-a = "0.2.7"
 uuid = "1.4.1"