diff --git a/crates/trippy-core/tests/sim/tracer.rs b/crates/trippy-core/tests/sim/tracer.rs
index 3172168c..29f71770 100644
--- a/crates/trippy-core/tests/sim/tracer.rs
+++ b/crates/trippy-core/tests/sim/tracer.rs
@@ -43,7 +43,7 @@ pub struct Tracer {
 }
 
 impl Tracer {
-    pub fn new(sim: Arc<Simulation>, token: CancellationToken) -> Self {
+    pub const fn new(sim: Arc<Simulation>, token: CancellationToken) -> Self {
         Self { sim, token }
     }
 
diff --git a/crates/trippy-tui/src/frontend/render/widgets/sparkline.rs b/crates/trippy-tui/src/frontend/render/widgets/sparkline.rs
index 9893836e..f54ff98c 100644
--- a/crates/trippy-tui/src/frontend/render/widgets/sparkline.rs
+++ b/crates/trippy-tui/src/frontend/render/widgets/sparkline.rs
@@ -334,6 +334,7 @@ mod tests {
 
     #[test]
     fn it_does_not_panic_if_max_is_set_to_zero() {
+        #[allow(clippy::unnecessary_min_or_max)]
         let widget = Sparkline::default().data(&[0, 1, 2]).max(0);
         let buffer = render(widget, 6);
         assert_eq!(buffer, Buffer::with_lines(["   xxx"]));