diff --git a/util/macros/Cargo.toml b/util/macros/Cargo.toml
index fd6a130f3..e0732b0b9 100644
--- a/util/macros/Cargo.toml
+++ b/util/macros/Cargo.toml
@@ -2,3 +2,4 @@
 name = "macros"
 version = "0.1.0"
 authors = ["Parity Technologies <admin@parity.io>"]
+edition = "2018"
diff --git a/util/macros/src/lib.rs b/util/macros/src/lib.rs
index 999c5122e..320375e8d 100644
--- a/util/macros/src/lib.rs
+++ b/util/macros/src/lib.rs
@@ -44,18 +44,6 @@ macro_rules! hash_map {
 	}}
 }
 
-#[macro_export]
-macro_rules! hash_map_into {
-	() => { HashMap::new() };
-	( $( $x:expr => $y:expr ),* ) => {{
-		let mut x = HashMap::new();
-		$(
-			x.insert($x.into(), $y.into());
-		)*
-		x
-	}}
-}
-
 #[macro_export]
 macro_rules! map {
 	() => { BTreeMap::new() };
@@ -68,18 +56,6 @@ macro_rules! map {
 	}}
 }
 
-#[macro_export]
-macro_rules! map_into {
-	() => { BTreeMap::new() };
-	( $( $x:expr => $y:expr ),* ) => {{
-		let mut x = BTreeMap::new();
-		$(
-			x.insert($x.into(), $y.into());
-		)*
-		x
-	}}
-}
-
 #[macro_export]
 macro_rules! flush {
 	($arg:expr) => ($crate::flush($arg.into()));