diff --git a/blobby/src/lib.rs b/blobby/src/lib.rs
index 2457e35b..e17f4cd8 100644
--- a/blobby/src/lib.rs
+++ b/blobby/src/lib.rs
@@ -4,7 +4,7 @@
     html_logo_url = "https://raw.githubusercontent.com/RustCrypto/media/6ee8e381/logo.svg",
     html_favicon_url = "https://raw.githubusercontent.com/RustCrypto/media/6ee8e381/logo.svg"
 )]
-#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![cfg_attr(docsrs, feature(doc_cfg))]
 #![deny(unsafe_code)]
 
 #[cfg(feature = "alloc")]
diff --git a/digest-io/src/lib.rs b/digest-io/src/lib.rs
index c0ef6a3f..36fc8c05 100644
--- a/digest-io/src/lib.rs
+++ b/digest-io/src/lib.rs
@@ -1,5 +1,5 @@
 #![doc = include_str!("../README.md")]
-#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![cfg_attr(docsrs, feature(doc_cfg))]
 #![forbid(unsafe_code)]
 #![doc(
     html_logo_url = "https://raw.githubusercontent.com/RustCrypto/media/6ee8e381/logo.svg",
diff --git a/inout/src/lib.rs b/inout/src/lib.rs
index 0a735ee3..8adc0d7a 100644
--- a/inout/src/lib.rs
+++ b/inout/src/lib.rs
@@ -6,7 +6,7 @@
     html_logo_url = "https://raw.githubusercontent.com/RustCrypto/media/8f1a9894/logo.svg",
     html_favicon_url = "https://raw.githubusercontent.com/RustCrypto/media/8f1a9894/logo.svg"
 )]
-#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![cfg_attr(docsrs, feature(doc_cfg))]
 #![warn(missing_docs)]
 
 #[cfg(feature = "block-padding")]
diff --git a/zeroize/src/lib.rs b/zeroize/src/lib.rs
index 8d7b915f..2c125168 100644
--- a/zeroize/src/lib.rs
+++ b/zeroize/src/lib.rs
@@ -1,5 +1,5 @@
 #![no_std]
-#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![cfg_attr(docsrs, feature(doc_cfg))]
 #![doc(
     html_logo_url = "https://raw.githubusercontent.com/RustCrypto/media/6ee8e381/logo.svg",
     html_favicon_url = "https://raw.githubusercontent.com/RustCrypto/media/6ee8e381/logo.svg"