diff --git a/CHANGES.md b/CHANGES.md
index 05055a51..848a908a 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -8,9 +8,13 @@
 * Associated type `FromRequest::Config` was removed. [#2233]
 * Inner field made private on `web::Payload`. [#2384]
 
+### Removed
+* `ServiceResponse::checked_expr` was a legacy and just removed. [#2401]
+
 [#2233]: https://github.com/actix/actix-web/pull/2233
 [#2362]: https://github.com/actix/actix-web/pull/2362
 [#2384]: https://github.com/actix/actix-web/pull/2384
+[#2401]: https://github.com/actix/actix-web/pull/2401
 
 
 ## 4.0.0-beta.9 - 2021-09-09
diff --git a/src/service.rs b/src/service.rs
index b9fa0e12..515d782d 100644
--- a/src/service.rs
+++ b/src/service.rs
@@ -393,16 +393,6 @@ impl<B> ServiceResponse<B> {
         self.response.headers_mut()
     }
 
-    /// Execute closure and in case of error convert it to response.
-    pub fn checked_expr<F, E>(mut self, f: F) -> Result<Self, Error>
-    where
-        F: FnOnce(&mut Self) -> Result<(), E>,
-        E: Into<Error>,
-    {
-        f(&mut self).map_err(Into::into)?;
-        Ok(self)
-    }
-
     /// Extract response body
     pub fn into_body(self) -> B {
         self.response.into_body()