diff --git a/actix-http/src/cookie/mod.rs b/actix-http/src/cookie/mod.rs
index 360d80883..7f74abc95 100644
--- a/actix-http/src/cookie/mod.rs
+++ b/actix-http/src/cookie/mod.rs
@@ -47,7 +47,7 @@
 //! ```
 
 #![doc(html_root_url = "https://docs.rs/cookie/0.11")]
-#![deny(missing_docs)]
+#![warn(missing_docs)]
 
 mod builder;
 mod delta;
diff --git a/actix-http/src/lib.rs b/actix-http/src/lib.rs
index 1cda9437f..9f615a129 100644
--- a/actix-http/src/lib.rs
+++ b/actix-http/src/lib.rs
@@ -1,5 +1,5 @@
 //! Basic http primitives for actix-net framework.
-#![deny(rust_2018_idioms, warnings)]
+#![warn(rust_2018_idioms, warnings)]
 #![allow(
     clippy::type_complexity,
     clippy::too_many_arguments,
diff --git a/awc/src/lib.rs b/awc/src/lib.rs
index 8944fe229..952a15369 100644
--- a/awc/src/lib.rs
+++ b/awc/src/lib.rs
@@ -1,4 +1,4 @@
-#![deny(rust_2018_idioms, warnings)]
+#![warn(rust_2018_idioms, warnings)]
 #![allow(
     clippy::type_complexity,
     clippy::borrow_interior_mutable_const,
diff --git a/src/lib.rs b/src/lib.rs
index a898bd704..d7cb45074 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,4 @@
-#![deny(rust_2018_idioms, warnings)]
+#![warn(rust_2018_idioms, warnings)]
 #![allow(
     clippy::needless_doctest_main,
     clippy::type_complexity,