diff --git a/src/commands.rs b/src/commands.rs
index 82903e1..cd61a67 100644
--- a/src/commands.rs
+++ b/src/commands.rs
@@ -47,7 +47,7 @@ pub struct ReferenceFrameCommands<'a, P: GridPrecision> {
     reference_frame: ReferenceFrame<P>,
 }
 
-impl<'a, P: GridPrecision> ReferenceFrameCommands<'a, P> {
+impl<P: GridPrecision> ReferenceFrameCommands<'_, P> {
     /// Get a reference to the current reference frame.
     pub fn frame(&mut self) -> &ReferenceFrame<P> {
         &self.reference_frame
@@ -173,7 +173,7 @@ impl<'a, P: GridPrecision> ReferenceFrameCommands<'a, P> {
 }
 
 /// Insert the reference frame on drop.
-impl<'a, P: GridPrecision> Drop for ReferenceFrameCommands<'a, P> {
+impl<P: GridPrecision> Drop for ReferenceFrameCommands<'_, P> {
     fn drop(&mut self) {
         self.commands
             .entity(self.entity)
@@ -188,7 +188,7 @@ pub struct SpatialEntityCommands<'a, P: GridPrecision> {
     phantom: PhantomData<P>,
 }
 
-impl<'a, P: GridPrecision> SpatialEntityCommands<'a, P> {
+impl<P: GridPrecision> SpatialEntityCommands<'_, P> {
     /// Insert a component on this reference frame
     pub fn insert(&mut self, bundle: impl Bundle) -> &mut Self {
         self.commands.entity(self.entity).insert(bundle);
diff --git a/src/reference_frame/local_origin.rs b/src/reference_frame/local_origin.rs
index 0decd54..e9ae37c 100644
--- a/src/reference_frame/local_origin.rs
+++ b/src/reference_frame/local_origin.rs
@@ -230,7 +230,7 @@ pub struct ReferenceFrames<'w, 's, P: GridPrecision> {
     frame_query: Query<'w, 's, (Entity, Read<ReferenceFrame<P>>, Option<Read<Parent>>)>,
 }
 
-impl<'w, 's, P: GridPrecision> ReferenceFrames<'w, 's, P> {
+impl<P: GridPrecision> ReferenceFrames<'_, '_, P> {
     /// Get a [`ReferenceFrame`] from its `Entity`.
     pub fn get(&self, frame_entity: Entity) -> &ReferenceFrame<P> {
         self.frame_query
@@ -301,7 +301,7 @@ pub struct ReferenceFramesMut<'w, 's, P: GridPrecision> {
     frame_query: Query<'w, 's, (Entity, Write<ReferenceFrame<P>>, Option<Read<Parent>>)>,
 }
 
-impl<'w, 's, P: GridPrecision> ReferenceFramesMut<'w, 's, P> {
+impl<P: GridPrecision> ReferenceFramesMut<'_, '_, P> {
     /// Get mutable access to the [`ReferenceFrame`], and run the provided function or closure,
     /// optionally returning data.
     ///
diff --git a/src/world_query.rs b/src/world_query.rs
index bf528f5..b9a9ec3 100644
--- a/src/world_query.rs
+++ b/src/world_query.rs
@@ -21,7 +21,7 @@ pub struct GridTransform<P: GridPrecision> {
     pub cell: &'static mut GridCell<P>,
 }
 
-impl<'w, P: GridPrecision> GridTransformItem<'w, P> {
+impl<P: GridPrecision> GridTransformItem<'_, P> {
     /// Compute the global position with double precision.
     pub fn position_double(&self, reference_frame: &ReferenceFrame<P>) -> DVec3 {
         reference_frame.grid_position_double(&self.cell, &self.transform)
@@ -41,7 +41,7 @@ impl<'w, P: GridPrecision> GridTransformItem<'w, P> {
     }
 }
 
-impl<'w, P: GridPrecision> GridTransformReadOnlyItem<'w, P> {
+impl<P: GridPrecision> GridTransformReadOnlyItem<'_, P> {
     /// Compute the global position with double precision.
     pub fn position_double(&self, reference_frame: &ReferenceFrame<P>) -> DVec3 {
         reference_frame.grid_position_double(self.cell, self.transform)