diff --git a/Cargo.lock b/Cargo.lock
index e87ba3c070dc16d13178610a41790e2ad91c4900..4546b230339f774185fee94bdc5ab175eed96e14 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -350,9 +350,9 @@ dependencies = [
 
 [[package]]
 name = "blake2"
-version = "0.9.1"
+version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10a5720225ef5daecf08657f23791354e1685a8c91a4c60c7f3d3b2892f978f4"
+checksum = "0a4e37d16930f5459780f5621038b6382b9bb37c19016f39fb6b5808d831f174"
 dependencies = [
  "crypto-mac 0.8.0",
  "digest 0.9.0",
diff --git a/Cargo.toml b/Cargo.toml
index 0aa6a1f6a003f070d5e6ab080669894b7d365080..5676a3c8b9c9c4c3719dbd6423dca3e060f202de 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -32,7 +32,7 @@ which = "4.2.2"
 colored = "2.0.0"
 toml = "0.5.8"
 rustc_version = "0.4.0"
-blake2 = "0.9.1"
+blake2 = "0.9.2"
 contract-metadata = { version = "0.3.0", path = "./metadata" }
 semver = { version = "1.0.4", features = ["serde"] }
 serde = { version = "1.0.129", default-features = false, features = ["derive"] }