diff --git a/Cargo.lock b/Cargo.lock
index e2d24ae6d4a..37cdb241f51 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1266,9 +1266,9 @@ dependencies = [
 
 [[package]]
 name = "heck"
-version = "0.4.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
+checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 
 [[package]]
 name = "hermit-abi"
diff --git a/codegen/Cargo.toml b/codegen/Cargo.toml
index 2cb5165bb10..98266f9f20b 100644
--- a/codegen/Cargo.toml
+++ b/codegen/Cargo.toml
@@ -15,7 +15,7 @@ description = "Generate an API for interacting with a substrate node from FRAME
 codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = ["derive", "full"] }
 darling = "0.14.0"
 frame-metadata = "15.0.0"
-heck = "0.4.0"
+heck = "0.4.1"
 proc-macro2 = "1.0.24"
 proc-macro-error = "1.0.4"
 quote = "1.0.8"