diff --git a/.github/workflows/msrv_toolchain.toml b/.github/workflows/msrv_toolchain.toml
index 640fc4616..555563a42 100644
--- a/.github/workflows/msrv_toolchain.toml
+++ b/.github/workflows/msrv_toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
 # Oldest nightly that currently works with `cargo xtask build`.
-channel = "nightly-2022-04-18"
+channel = "nightly-2022-09-14"
 components = ["rust-src"]
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 253e34377..bc326f7a8 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -117,7 +117,7 @@ jobs:
           cargo xtask clippy --warnings-as-errors
 
       - name: Run cargo doc
-        run: cargo xtask doc --warnings-as-errors
+        run: cargo xtask doc
 
   miri:
     name: Run unit tests and doctests under Miri
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 03bea327d..3642f0d0b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
 
 - Fixed the definition of `AllocateType` so that `MaxAddress` and
   `Address` always take a 64-bit value, regardless of target platform.
+- The MSRV is `nightly-2022-09-14` (`1.65.0`)
 
 ## uefi-macros - [Unreleased]
 
diff --git a/src/lib.rs b/src/lib.rs
index 510e63756..b4f7f0f98 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -33,6 +33,10 @@
 // Enable some additional warnings and lints.
 #![warn(clippy::ptr_as_ptr, missing_docs, unused)]
 #![deny(clippy::all)]
+#![deny(rustdoc::all)]
+// todo remove once https://github.com/rust-lang/rust/issues/101730 is stable
+#![feature(rustdoc_missing_doc_code_examples)]
+#![allow(rustdoc::missing_doc_code_examples)]
 
 // `uefi-exts` requires access to memory allocation APIs.
 #[cfg(feature = "exts")]
diff --git a/uefi-macros/src/lib.rs b/uefi-macros/src/lib.rs
index 38717dfdb..19ac34318 100644
--- a/uefi-macros/src/lib.rs
+++ b/uefi-macros/src/lib.rs
@@ -1,4 +1,10 @@
 #![recursion_limit = "128"]
+#![deny(rustdoc::all)]
+// todo remove once https://github.com/rust-lang/rust/issues/101730 is stable
+#![feature(rustdoc_missing_doc_code_examples)]
+#![allow(rustdoc::missing_doc_code_examples)]
+
+//! Code generation macros for the `uefi` crate.
 
 extern crate proc_macro;
 
diff --git a/uefi-services/src/lib.rs b/uefi-services/src/lib.rs
index a352834ba..b9f9cc17d 100644
--- a/uefi-services/src/lib.rs
+++ b/uefi-services/src/lib.rs
@@ -19,6 +19,10 @@
 #![no_std]
 #![feature(alloc_error_handler)]
 #![feature(abi_efiapi)]
+#![deny(rustdoc::all)]
+// todo remove once https://github.com/rust-lang/rust/issues/101730 is stable
+#![feature(rustdoc_missing_doc_code_examples)]
+#![allow(rustdoc::missing_doc_code_examples)]
 
 #[macro_use]
 extern crate log;
diff --git a/xtask/src/cargo.rs b/xtask/src/cargo.rs
index 38bf38f5f..ed7c0f715 100644
--- a/xtask/src/cargo.rs
+++ b/xtask/src/cargo.rs
@@ -146,9 +146,6 @@ impl Cargo {
             }
             CargoAction::Doc { open } => {
                 action = "doc";
-                if self.warnings_as_errors {
-                    cmd.env("RUSTDOCFLAGS", "-Dwarnings");
-                }
                 if open {
                     extra_args.push("--open");
                 }
@@ -237,11 +234,11 @@ mod tests {
             packages: vec![Package::Uefi, Package::Xtask],
             release: false,
             target: None,
-            warnings_as_errors: true,
+            warnings_as_errors: false,
         };
         assert_eq!(
             command_to_string(&cargo.command().unwrap()),
-            "RUSTDOCFLAGS=-Dwarnings cargo doc --package uefi --package xtask --features alloc --open"
+            "cargo doc --package uefi --package xtask --features alloc --open"
         );
     }
 }