diff --git a/Cargo.toml b/Cargo.toml
index 33d39c7c55..30b3bf7793 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ num-traits = { version = "0.2", default-features = false }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 url = "1.7"
-codec = { package = "parity-scale-codec", version = "1.1", default-features = false, features = ["derive", "full"] }
+codec = { package = "parity-scale-codec", version = "1.2", default-features = false, features = ["derive", "full"] }
 
 frame-metadata = { version = "11.0.0-alpha.3", package = "frame-metadata" }
 frame-support = { version = "2.0.0-alpha.3", package = "frame-support" }