diff --git a/src/inclusive_map.rs b/src/inclusive_map.rs
index 36ff7da..ae9c89e 100644
--- a/src/inclusive_map.rs
+++ b/src/inclusive_map.rs
@@ -559,7 +559,10 @@ where
 
     /// Gets an iterator over all the stored ranges that are
     /// either partially or completely overlapped by the given range.
-    pub fn overlapping<R: Borrow<RangeInclusive<K>>>(&self, range: R) -> Overlapping<K, V, R> {
+    pub fn overlapping<R: Borrow<RangeInclusive<K>>>(
+        &'_ self,
+        range: R,
+    ) -> Overlapping<'_, K, V, R> {
         // Find the first matching stored range by its _end_,
         // using sneaky layering and `Borrow` implementation. (See `range_wrappers` module.)
         let start_sliver = RangeInclusiveEndWrapper::new(
diff --git a/src/inclusive_set.rs b/src/inclusive_set.rs
index c7ad1c0..7772899 100644
--- a/src/inclusive_set.rs
+++ b/src/inclusive_set.rs
@@ -175,7 +175,7 @@ where
     /// either partially or completely overlapped by the given range.
     ///
     /// The iterator element type is `RangeInclusive<T>`.
-    pub fn overlapping<R: Borrow<RangeInclusive<T>>>(&self, range: R) -> Overlapping<T, R> {
+    pub fn overlapping<R: Borrow<RangeInclusive<T>>>(&'_ self, range: R) -> Overlapping<'_, T, R> {
         Overlapping {
             inner: self.rm.overlapping(range),
         }
diff --git a/src/map.rs b/src/map.rs
index 2ed7243..7296c5b 100644
--- a/src/map.rs
+++ b/src/map.rs
@@ -200,7 +200,7 @@ where
 
     /// Gets an iterator over all the stored ranges that are
     /// either partially or completely overlapped by the given range.
-    pub fn overlapping<R: Borrow<Range<K>>>(&self, range: R) -> Overlapping<K, V, R> {
+    pub fn overlapping<R: Borrow<Range<K>>>(&'_ self, range: R) -> Overlapping<'_, K, V, R> {
         // Find the first matching stored range by its _end_,
         // using sneaky layering and `Borrow` implementation. (See `range_wrappers` module.)
         let start_sliver =
diff --git a/src/set.rs b/src/set.rs
index 3437213..d68b182 100644
--- a/src/set.rs
+++ b/src/set.rs
@@ -159,7 +159,7 @@ where
     /// either partially or completely overlapped by the given range.
     ///
     /// The iterator element type is `&Range<T>`.
-    pub fn overlapping<R: Borrow<Range<T>>>(&self, range: R) -> Overlapping<T, R> {
+    pub fn overlapping<R: Borrow<Range<T>>>(&'_ self, range: R) -> Overlapping<'_, T, R> {
         Overlapping {
             inner: self.rm.overlapping(range),
         }