diff --git a/.github/workflows/doc-and-test.yml b/.github/workflows/doc-and-test.yml
index 98fdc666..1e6f0b1c 100644
--- a/.github/workflows/doc-and-test.yml
+++ b/.github/workflows/doc-and-test.yml
@@ -13,7 +13,7 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly-2022-04-11
+          toolchain: nightly-2022-07-20
           components: rust-src, llvm-tools-preview
           target: riscv64gc-unknown-none-elf
       - name: Build doc
@@ -32,7 +32,7 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly-2022-04-11
+          toolchain: nightly-2022-07-20
           components: rust-src, llvm-tools-preview
           target: riscv64gc-unknown-none-elf
       - uses: actions-rs/install@v0.1
diff --git a/os/Makefile b/os/Makefile
index b38c23a6..0658a5e0 100644
--- a/os/Makefile
+++ b/os/Makefile
@@ -51,7 +51,7 @@ endif
 
 env:
 	(rustup target list | grep "riscv64gc-unknown-none-elf (installed)") || rustup target add $(TARGET)
-	cargo install cargo-binutils --vers =0.3.3
+	cargo install cargo-binutils
 	rustup component add rust-src
 	rustup component add llvm-tools-preview
 
diff --git a/rust-toolchain b/rust-toolchain
deleted file mode 100644
index abcacd9b..00000000
--- a/rust-toolchain
+++ /dev/null
@@ -1 +0,0 @@
-nightly-2022-04-11
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 00000000..c56a59e0
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,4 @@
+[toolchain]
+profile = "minimal"
+channel = "nightly-2022-07-20"
+components = ["rust-src", "llvm-tools-preview", "rustfmt", "clippy"]