diff --git a/orchestrator/Cargo.lock b/orchestrator/Cargo.lock
index 8e61e0138..b17db30f5 100644
--- a/orchestrator/Cargo.lock
+++ b/orchestrator/Cargo.lock
@@ -1107,7 +1107,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "309ac0ae526b740d40038944bf41c3679acb212657154e1f6bb678704cba37da"
 dependencies = [
  "lazy_static",
- "num-bigint 0.4.0",
+ "num-bigint 0.4.3",
  "num-traits",
  "num256",
  "secp256k1",
@@ -1417,7 +1417,7 @@ dependencies = [
  "cosmos-sdk-proto",
  "hmac",
  "log",
- "num-bigint 0.4.0",
+ "num-bigint 0.4.3",
  "num-traits",
  "num256",
  "pbkdf2 0.9.0",
@@ -2273,7 +2273,7 @@ dependencies = [
  "gravity_proto",
  "lazy_static",
  "log",
- "num-bigint 0.4.0",
+ "num-bigint 0.4.3",
  "num256",
  "rand 0.8.4",
  "rustc-hex",
@@ -2933,7 +2933,7 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "43db66d1170d347f9a065114077f7dccb00c1b9478c89384490a3425279a4606"
 dependencies = [
- "num-bigint 0.4.0",
+ "num-bigint 0.4.3",
  "num-complex 0.4.0",
  "num-integer",
  "num-iter",
@@ -2954,9 +2954,9 @@ dependencies = [
 
 [[package]]
 name = "num-bigint"
-version = "0.4.0"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e0d047c1062aa51e256408c560894e5251f08925980e53cf1aa5bd00eec6512"
+checksum = "f93ab6289c7b344a8a9f60f88d80aa20032336fe78da341afc91c8a2341fc75f"
 dependencies = [
  "autocfg",
  "num-integer",
@@ -3034,7 +3034,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d41702bd167c2df5520b384281bc111a4b5efcf7fbc4c9c222c815b07e0a6a6a"
 dependencies = [
  "autocfg",
- "num-bigint 0.4.0",
+ "num-bigint 0.4.3",
  "num-integer",
  "num-traits",
 ]