diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8dfde34..c207521 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -107,7 +107,7 @@ jobs:
     strategy:
       matrix:
         ffmpeg-version: ["release/4.3", "release/5.0", "release/6.0"]
-        rust: ["nightly", "1.64.0"]
+        rust: ["nightly", "1.70.0"]
         valgrind: ["valgrind", "no valgrind"]
         include:
           - ffmpeg-version: "release/5.0"
@@ -123,7 +123,7 @@ jobs:
           - valgrind: "valgrind"
             ffmpeg-version: "release/4.3"
           - valgrind: "valgrind"
-            rust: "1.64.0"
+            rust: "1.70.0"
       fail-fast: false
 
     steps:
@@ -137,7 +137,7 @@ jobs:
       - name: Install valgrind dependencies
         run: |
           sudo apt-get -y install libc6-dbg
-          cargo install cargo-valgrind
+          cargo install cargo-valgrind --version 2.0.2
 
       - name: Cache valgrind
         id: cache
@@ -250,7 +250,7 @@ jobs:
   build_dynamic_and_test_windows:
     strategy:
       matrix:
-        rust: ["nightly", "1.64.0"]
+        rust: ["nightly", "1.70.0"]
       fail-fast: false
     runs-on: windows-latest
     needs: build_dynamic_and_test_windows_pre
diff --git a/Cargo.toml b/Cargo.toml
index 0e51850..b2d47e2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ documentation = "https://docs.rs/rsmpeg"
 repository = "https://github.com/larksuite/rsmpeg"
 readme = "README.md"
 exclude = ["tests/*", "examples/*", "utils/*"]
-rust-version = "1.64.0"
+rust-version = "1.70.0"
 
 [dependencies]
 rusty_ffmpeg = "0.13.1"
diff --git a/README.md b/README.md
index 6a1126c..976dac2 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ Supported FFmpeg versions are:
 - `5.*`(Enabled by feature `ffmpeg5`)
 - `6.*`(Enabled by feature `ffmpeg6`).
 
-Minimum Supported Rust Version is 1.64.0(Stable channel).
+Minimum Supported Rust Version is 1.70.0(Stable channel).
 
 ## Getting started