diff --git a/Cargo.toml b/Cargo.toml
index 4363a1f..ff52d7b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,8 @@
 [package]
 name = "pwasm-utils"
-version = "0.18.2"
-edition = "2018"
+version = "0.19.0"
+edition = "2021"
+rust-version = "1.56.1"
 authors = ["Nikolay Volf <nikvolf@gmail.com>", "Sergey Pepyakin <s.pepyakin@gmail.com>"]
 license = "MIT/Apache-2.0"
 readme = "README.md"
diff --git a/src/optimizer.rs b/src/optimizer.rs
index 909ac5c..621e47b 100644
--- a/src/optimizer.rs
+++ b/src/optimizer.rs
@@ -299,7 +299,7 @@ pub fn optimize(
 							update_type_index(func_body.code_mut(), &eliminated_types)
 						}
 					}
-				}
+				},
 				elements::Section::Export(export_section) => {
 					for export in export_section.entries_mut() {
 						match export.internal_mut() {