diff --git a/src/ast.rs b/src/ast.rs
index dc90b75..f167bae 100644
--- a/src/ast.rs
+++ b/src/ast.rs
@@ -48,7 +48,7 @@ impl ToTokens for Func {
 }
 
 fn parse_signature(input: &mut TokenIter) -> Vec<TokenTree> {
-    let mut sig = Vec::new();
+    let mut sig = vec![];
     let mut has_const = false;
     loop {
         match input.peek() {
@@ -82,7 +82,7 @@ fn parse_signature(input: &mut TokenIter) -> Vec<TokenTree> {
 }
 
 fn parse_attrs(input: &mut TokenIter) -> Result<Vec<Attribute>> {
-    let mut attrs = Vec::new();
+    let mut attrs = vec![];
     loop {
         let pound_token = match input.peek() {
             Some(TokenTree::Punct(p)) if p.as_char() == '#' => input.next().unwrap(),
diff --git a/test_suite/tests/test.rs b/test_suite/tests/test.rs
index e04c0d1..85946fc 100644
--- a/test_suite/tests/test.rs
+++ b/test_suite/tests/test.rs
@@ -174,9 +174,9 @@ pub mod version {
     fn test() {
         assert!(const_min("variables") == "variables");
         assert_eq!(const_let("variables"), "variables");
-        assert_eq!(const_vec_new::<u8>(), Vec::new());
+        assert_eq!(const_vec_new::<u8>(), vec![]);
         assert_eq!(const_match(1), Some(1));
-        assert_eq!(A::const_fn_trait_bound(const_vec_new::<u8>()), A(Vec::new()));
+        assert_eq!(A::const_fn_trait_bound(const_vec_new::<u8>()), A(vec![]));
     }
 }
 
@@ -241,9 +241,9 @@ pub mod cfg {
     fn test() {
         assert!(const_min("variables") == "variables");
         assert_eq!(const_let("variables"), "variables");
-        assert_eq!(const_vec_new::<u8>(), Vec::new());
+        assert_eq!(const_vec_new::<u8>(), vec![]);
         assert_eq!(const_match(1), Some(1));
-        assert_eq!(A::const_fn_trait_bound(const_vec_new::<u8>()), A(Vec::new()));
+        assert_eq!(A::const_fn_trait_bound(const_vec_new::<u8>()), A(vec![]));
     }
 }