diff --git a/examples/case_tree.rs b/examples/case_tree.rs
index f9c75dc..6599117 100644
--- a/examples/case_tree.rs
+++ b/examples/case_tree.rs
@@ -7,7 +7,7 @@ fn main() {
     let var = 5;
     let case = pred.find_case(true, &var);
     if let Some(case) = case {
-        println!("var is {}", var);
+        println!("var is {var}");
         println!("{}", case.tree());
     }
 }
diff --git a/src/ord.rs b/src/ord.rs
index 1a78c8d..4c2305c 100644
--- a/src/ord.rs
+++ b/src/ord.rs
@@ -26,7 +26,7 @@ impl fmt::Display for EqOps {
             EqOps::Equal => "==",
             EqOps::NotEqual => "!=",
         };
-        write!(f, "{}", op)
+        write!(f, "{op}")
     }
 }
 
@@ -148,7 +148,7 @@ impl fmt::Display for OrdOps {
             OrdOps::GreaterThanOrEqual => ">=",
             OrdOps::GreaterThan => ">",
         };
-        write!(f, "{}", op)
+        write!(f, "{op}")
     }
 }
 
diff --git a/src/path/ft.rs b/src/path/ft.rs
index aceed55..eec09f7 100644
--- a/src/path/ft.rs
+++ b/src/path/ft.rs
@@ -54,7 +54,7 @@ impl fmt::Display for FileType {
             FileType::Dir => "dir",
             FileType::Symlink => "symlink",
         };
-        write!(f, "{}", t)
+        write!(f, "{t}")
     }
 }
 
diff --git a/src/str/difference.rs b/src/str/difference.rs
index 81c62b8..0a362dc 100644
--- a/src/str/difference.rs
+++ b/src/str/difference.rs
@@ -31,8 +31,8 @@ impl Predicate<str> for DifferencePredicate {
             None
         } else {
             let palette = crate::Palette::new(true);
-            let orig: Vec<_> = self.orig.lines().map(|l| format!("{}\n", l)).collect();
-            let variable: Vec<_> = variable.lines().map(|l| format!("{}\n", l)).collect();
+            let orig: Vec<_> = self.orig.lines().map(|l| format!("{l}\n")).collect();
+            let variable: Vec<_> = variable.lines().map(|l| format!("{l}\n")).collect();
             let diff = difflib::unified_diff(
                 &orig,
                 &variable,