diff --git a/Cargo.lock b/Cargo.lock
index d299e7afbcad59c6ae18b6b94f2f19a4bc58d44f..6e9c89c7cf397239cdf44ceeff4f1d8e446d8da5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3630,9 +3630,9 @@ dependencies = [
 
 [[package]]
 name = "toml"
-version = "0.5.8"
+version = "0.5.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a31142970826733df8241ef35dc040ef98c679ab14d7c3e54d827099b3acecaa"
+checksum = "8d82e1a7758622a465f8cee077614c73484dac5b836c02ff6a40d5d1010324d7"
 dependencies = [
  "serde",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index edc26461e36f7beefe392c92b38dccd5d92892ff..46d2922e05197cf655c607335372cc6cd5093c94 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,7 +35,7 @@ cargo_metadata = "0.14.2"
 scale = { package = "parity-scale-codec", version = "3.0.0", features = ["derive"] }
 which = "4.2.5"
 colored = "2.0.0"
-toml = "0.5.8"
+toml = "0.5.9"
 rustc_version = "0.4.0"
 blake2 = "0.10.4"
 contract-metadata = { version = "0.6.0", path = "./metadata" }