diff --git a/Cargo.toml b/Cargo.toml
index 4f321b5..0d3a54a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "certified-assets"
-version = "0.2.2"
+version = "0.2.3"
 authors = ["DFINITY Stiftung <sdk@dfinity.org>"]
 edition = "2018"
 
@@ -14,6 +14,6 @@ path = "src/lib.rs"
 crate-type = ["cdylib"]
 
 [dependencies]
-ic-certified-assets = "0.2.2"
+ic-certified-assets = "0.2.3"
 ic-cdk = "0.5.0"
 ic-cdk-macros = "0.5.0"
diff --git a/assets.did b/assets.did
index 0b8d606..deaa63f 100644
--- a/assets.did
+++ b/assets.did
@@ -7,6 +7,7 @@ type CreateAssetArguments = record {
   key: Key;
   content_type: text;
   max_age: opt nat64;
+  headers: opt HeaderField;
 };
 
 // Add or change content for an asset, by content encoding
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 47462fc..9b31b19 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
-channel = "1.58.1"
+channel = "1.60.0"
 targets = ["wasm32-unknown-unknown"]
 components = ["rustfmt", "clippy"]