diff --git a/tower/CHANGELOG.md b/tower/CHANGELOG.md
index 840c1f89f..1b655569b 100644
--- a/tower/CHANGELOG.md
+++ b/tower/CHANGELOG.md
@@ -8,6 +8,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 # Unreleased
 
 - **util**: Add `CloneBoxService` which is a `Clone + Send` boxed `Service`.
+- **util**: Remove unnecessary `Debug` bounds from `impl Debug for BoxService`.
+- **util**: Remove unnecessary `Debug` bounds from `impl Debug for UnsyncBoxService`.
 
 ### Fixed
 
diff --git a/tower/src/util/boxed/sync.rs b/tower/src/util/boxed/sync.rs
index 4dbb06cf4..ef092405c 100644
--- a/tower/src/util/boxed/sync.rs
+++ b/tower/src/util/boxed/sync.rs
@@ -67,12 +67,7 @@ impl<T, U, E> Service<T> for BoxService<T, U, E> {
     }
 }
 
-impl<T, U, E> fmt::Debug for BoxService<T, U, E>
-where
-    T: fmt::Debug,
-    U: fmt::Debug,
-    E: fmt::Debug,
-{
+impl<T, U, E> fmt::Debug for BoxService<T, U, E> {
     fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
         fmt.debug_struct("BoxService").finish()
     }
diff --git a/tower/src/util/boxed/unsync.rs b/tower/src/util/boxed/unsync.rs
index b5a792d38..f645f1699 100644
--- a/tower/src/util/boxed/unsync.rs
+++ b/tower/src/util/boxed/unsync.rs
@@ -61,12 +61,7 @@ impl<T, U, E> Service<T> for UnsyncBoxService<T, U, E> {
     }
 }
 
-impl<T, U, E> fmt::Debug for UnsyncBoxService<T, U, E>
-where
-    T: fmt::Debug,
-    U: fmt::Debug,
-    E: fmt::Debug,
-{
+impl<T, U, E> fmt::Debug for UnsyncBoxService<T, U, E> {
     fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
         fmt.debug_struct("UnsyncBoxService").finish()
     }