diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 103f319c..c4474244 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -19,7 +19,7 @@ jobs:
         uses: actions-rs/toolchain@v1.0.7
         with:
           profile: minimal
-          toolchain: 1.64.0
+          toolchain: 1.65.0
           override: true
           components: rustfmt, clippy
 
@@ -35,6 +35,12 @@ jobs:
       - name: Remove pre-generated prost files to force regeneration
         run: rm proto/*.rs
 
+      - name: Set precise version to allow building on 1.65.0
+        uses: actions-rs/cargo@v1.0.3
+        with:
+          command: update
+          args: -p anstyle@1.0.3 --precise 1.0.3
+
       - name: Run cargo clippy prost
         uses: actions-rs/cargo@v1.0.3
         with:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 20786ae5..12faf317 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Changed
+- Bump the MSRV to 1.65.0 (#204)
+
 ## [0.12.1] - 2023-07-25
 
 ### Fixed
diff --git a/Cargo.toml b/Cargo.toml
index 731e8d4b..bea6b2c2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ description = "An internal perf tools for rust programs."
 repository = "https://github.com/tikv/pprof-rs"
 documentation = "https://docs.rs/pprof/"
 readme = "README.md"
-rust-version = "1.64.0"  # MSRV
+rust-version = "1.65.0"  # MSRV
 
 [features]
 default = ["cpp"]
diff --git a/README.md b/README.md
index 3157599d..83f060ce 100644
--- a/README.md
+++ b/README.md
@@ -247,7 +247,7 @@ Unit tests have been added to guarantee there is no `malloc` in sample functions
 
 ## Minimum Supported Rust Version
 
-Rust 1.64 or higher.
+Rust 1.65 or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be done with a minor version bump.