diff --git a/serde/Cargo.toml b/serde/Cargo.toml
index 875f317b..c8d5f5ac 100644
--- a/serde/Cargo.toml
+++ b/serde/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "serde"
-version = "1.0.65" # remember to update html_root_url
+version = "1.0.66" # remember to update html_root_url
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "A generic serialization/deserialization framework"
diff --git a/serde/src/lib.rs b/serde/src/lib.rs
index 90a88744..883b527b 100644
--- a/serde/src/lib.rs
+++ b/serde/src/lib.rs
@@ -82,7 +82,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 // Serde types in rustdoc of other crates get linked to here.
-#![doc(html_root_url = "https://docs.rs/serde/1.0.65")]
+#![doc(html_root_url = "https://docs.rs/serde/1.0.66")]
 // Support using Serde without the standard library!
 #![cfg_attr(not(feature = "std"), no_std)]
 // Unstable functionality only if the user asks for it. For tracking and
diff --git a/serde_derive/Cargo.toml b/serde_derive/Cargo.toml
index bd17803e..027bf132 100644
--- a/serde_derive/Cargo.toml
+++ b/serde_derive/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "serde_derive"
-version = "1.0.65" # remember to update html_root_url
+version = "1.0.66" # remember to update html_root_url
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "Macros 1.1 implementation of #[derive(Serialize, Deserialize)]"
diff --git a/serde_derive/src/lib.rs b/serde_derive/src/lib.rs
index f684a9ff..b1bbe436 100644
--- a/serde_derive/src/lib.rs
+++ b/serde_derive/src/lib.rs
@@ -22,7 +22,7 @@
 //!
 //! [https://serde.rs/derive.html]: https://serde.rs/derive.html
 
-#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.65")]
+#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.66")]
 #![cfg_attr(feature = "cargo-clippy", deny(clippy, clippy_pedantic))]
 // Whitelisted clippy lints
 #![cfg_attr(
diff --git a/serde_test/Cargo.toml b/serde_test/Cargo.toml
index abb26a3f..967dd89d 100644
--- a/serde_test/Cargo.toml
+++ b/serde_test/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "serde_test"
-version = "1.0.65" # remember to update html_root_url
+version = "1.0.66" # remember to update html_root_url
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "Token De/Serializer for testing De/Serialize implementations"
diff --git a/serde_test/src/lib.rs b/serde_test/src/lib.rs
index c942280d..290cdefe 100644
--- a/serde_test/src/lib.rs
+++ b/serde_test/src/lib.rs
@@ -161,7 +161,7 @@
 //! # }
 //! ```
 
-#![doc(html_root_url = "https://docs.rs/serde_test/1.0.65")]
+#![doc(html_root_url = "https://docs.rs/serde_test/1.0.66")]
 #![cfg_attr(feature = "cargo-clippy", deny(clippy, clippy_pedantic))]
 // Whitelisted clippy lints
 #![cfg_attr(feature = "cargo-clippy", allow(float_cmp))]