diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c543434..9696932 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -45,9 +45,9 @@ jobs:
         run: choco install llvm -y
 
       - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          components: rustfmt, clippy
+        run: |
+          rustup show
+          rustup component add rustfmt clippy
 
       - name: Code format check
         uses: actions-rs/cargo@v1
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ebe3a38..0637c81 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -27,9 +27,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          components: rustfmt, clippy
+        run: |
+          rustup show
+          rustup component add rustfmt clippy
       - name: Code format check
         uses: actions-rs/cargo@v1
         with:
@@ -167,12 +167,9 @@ jobs:
         if: matrix.job.os == 'windows-2019'
 
       - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          target: ${{ matrix.job.target }}
-          override: true
-          profile: minimal
+        run: |
+          rustup show
+          rustup target add ${{ matrix.job.target }}
 
       - name: Build
         uses: actions-rs/cargo@v1
@@ -276,7 +273,7 @@ jobs:
           ssh-add -D
       - uses: actions/checkout@v2
       - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
+        run: rustup show
       - name: Publish to crates.io
         shell: bash
         run: |
diff --git a/rust-toolchain b/rust-toolchain
deleted file mode 100644
index 0834888..0000000
--- a/rust-toolchain
+++ /dev/null
@@ -1 +0,0 @@
-1.72.0
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..743f7cd
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,2 @@
+[toolchain]
+channel = "1.72.0"