diff --git a/.github/workflows/clippy.yml b/.github/workflows/clippy.yml
index 111b1ef99..e020d63c9 100644
--- a/.github/workflows/clippy.yml
+++ b/.github/workflows/clippy.yml
@@ -16,7 +16,9 @@ jobs:
           ref: refs/pull/${{ github.event.number }}/head
       - uses: actions/checkout@v2
         if: github.event_name != 'pull_request_target'
-      - run: sed -n 's,^rust-version = "\(.*\)"$,RUSTUP_TOOLCHAIN=\1,p' Cargo.toml >> $GITHUB_ENV
+      # TODO update when stable Rust 1.65 is out.
+      #- run: sed -n 's,^rust-version = "\(.*\)"$,RUSTUP_TOOLCHAIN=\1,p' Cargo.toml >> $GITHUB_ENV
+      - run: echo RUSTUP_TOOLCHAIN=beta >> $GITHUB_ENV
       - run: rustup toolchain install $RUSTUP_TOOLCHAIN
       - run: rustup component add clippy
       - uses: actions-rs/clippy-check@v1
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 72b3fdbab..4d18fcbbc 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,8 +20,9 @@ jobs:
         # Test on stable, MSRV, and nightly.
         # Failure is permitted on nightly.
         rust:
-          - stable
-          - 1.60.0
+          # TODO update when stable Rust 1.65 is out.
+          #- stable
+          - beta
           - nightly
 
         features:
@@ -64,8 +65,9 @@ jobs:
         # Test on stable, MSRV, and nightly.
         # Failure is permitted on nightly.
         rust:
-          - stable
-          - 1.60.0
+          # TODO update when stable Rust 1.65 is out.
+          #- stable
+          - beta
           - nightly
 
         features:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6e7cbbf7d..d12c4c73b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,7 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Remove IpAddress::Unspecified
 - When sending packets with a raw socket, the source IP address is sent unmodified (it was previously replaced with the interface's address if it was unspecified).
 - Fix enable `defmt/alloc` if `alloc` or `std` is enabled.
-- Minimum Supported Rust Version (MSRV) **bumped** from 1.56 to 1.60
+- Minimum Supported Rust Version (MSRV) **bumped** from 1.56 to 1.65
 
 ## [0.8.1] - 2022-05-12
 
diff --git a/Cargo.toml b/Cargo.toml
index 60c785837..d4e31f34b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 name = "smoltcp"
 version = "0.8.0"
 edition = "2018"
-rust-version = "1.60"
+rust-version = "1.65"
 authors = ["whitequark <whitequark@whitequark.org>"]
 description = "A TCP/IP stack designed for bare-metal, real-time systems without a heap."
 documentation = "https://docs.rs/smoltcp/"
diff --git a/README.md b/README.md
index 9c07fb291..61de6ca0f 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ include complicated compile-time computations, such as macro or type tricks, eve
 at cost of performance degradation.
 
 _smoltcp_ does not need heap allocation *at all*, is [extensively documented][docs],
-and compiles on stable Rust 1.60 and later.
+and compiles on stable Rust 1.65 and later.
 
 _smoltcp_ achieves [~Gbps of throughput](#examplesbenchmarkrs) when tested against
 the Linux TCP stack in loopback mode.
diff --git a/src/lib.rs b/src/lib.rs
index 6eb0568dc..74ff6bba7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -65,7 +65,7 @@
 //!
 //! # Minimum Supported Rust Version (MSRV)
 //!
-//! This crate is guaranteed to compile on stable Rust 1.60 and up with any valid set of features.
+//! This crate is guaranteed to compile on stable Rust 1.65 and up with any valid set of features.
 //! It *might* compile on older versions but that may change in any new patch release.
 //!
 //! The exception is when using the `defmt` feature, in which case `defmt`'s MSRV applies, which