diff --git a/Cargo.lock b/Cargo.lock
index eae7710f53fb28d279f8413f99ecf016e21a20f6..62f9370f1d0827d547efc6c8d6981226ae7d8900 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4153,9 +4153,9 @@ dependencies = [
 
 [[package]]
 name = "which"
-version = "4.2.2"
+version = "4.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea187a8ef279bc014ec368c27a920da2024d2a711109bfbe3440585d5cf27ad9"
+checksum = "2a5a7e487e921cf220206864a94a89b6c6905bfc19f1057fa26a4cb360e5c1d2"
 dependencies = [
  "either",
  "lazy_static",
diff --git a/Cargo.toml b/Cargo.toml
index b02c90b6f9f6a1e92048e551f38033420a0c78d8..c02e8ddff6ce7cf3129d1829bf55ad8ec89b2bfd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ zip = { version = "0.5.13", default-features = false }
 parity-wasm = "0.42.2"
 cargo_metadata = "0.14.1"
 codec = { package = "parity-scale-codec", version = "2.3.1", features = ["derive"] }
-which = "4.2.2"
+which = "4.2.4"
 colored = "2.0.0"
 toml = "0.5.8"
 rustc_version = "0.4.0"