diff --git a/Cargo.toml b/Cargo.toml
index d3812437..00a2e8e3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,4 +30,7 @@ serde_json = "1"
 toml = "0.8"
 
 [lints.rust]
-missing-docs = "warn"
+rust-2018-idioms = { level = "deny" }
+future-incompatible = { level = "deny" }
+nonstandard-style = { level = "deny" }
+missing-docs = { level = "warn" }
diff --git a/src/lib.rs b/src/lib.rs
index d7502010..4e0e0c1e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -268,13 +268,13 @@ pub fn to_string_format(bytes: u64, format: Format) -> String {
 }
 
 impl Display for ByteSize {
-    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
         f.pad(&to_string_format(self.0, Format::IEC))
     }
 }
 
 impl Debug for ByteSize {
-    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
         <Self as Display>::fmt(self, f)
     }
 }