diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index 2405ebea14..0b97c19bc6 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -162,9 +162,9 @@ checksum = "e22d1f4b888c298a027c99dc9048015fac177587de20fc30232a057dfbe24a21"
 
 [[package]]
 name = "assert_cmd"
-version = "1.0.8"
+version = "2.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c98233c6673d8601ab23e77eb38f999c51100d46c5703b17288c57fddf3a1ffe"
+checksum = "e996dc7940838b7ef1096b882e29ec30a3149a3a443cdc8dba19ed382eca1fe2"
 dependencies = [
  "bstr",
  "doc-comment",
diff --git a/polkadot/Cargo.toml b/polkadot/Cargo.toml
index 3d5d5c1f12..b44d33849e 100644
--- a/polkadot/Cargo.toml
+++ b/polkadot/Cargo.toml
@@ -17,7 +17,7 @@ color-eyre = { version = "0.5.11", default-features = false }
 parity-util-mem = { version = "*", default-features = false, features = ["jemalloc-global"] }
 
 [dev-dependencies]
-assert_cmd = "1.0.2"
+assert_cmd = "2.0.2"
 nix = "0.20.0"
 tempfile = "3.2.0"