diff --git a/os6-ref/Cargo.toml b/os6-ref/Cargo.toml
index 4dcee45..4df43a7 100644
--- a/os6-ref/Cargo.toml
+++ b/os6-ref/Cargo.toml
@@ -19,4 +19,4 @@ easy-fs = { path = "../easy-fs" }
 
 [profile.release]
 debug = true
-opt-level = 0
\ No newline at end of file
+opt-level = 0
diff --git a/os6/Cargo.toml b/os6/Cargo.toml
index 4dcee45..86f4964 100644
--- a/os6/Cargo.toml
+++ b/os6/Cargo.toml
@@ -14,9 +14,9 @@ log = "0.4"
 riscv = { git = "https://github.com/rcore-os/riscv", features = ["inline-asm"] }
 lock_api = "=0.4.6"
 xmas-elf = "0.7.0"
-virtio-drivers = { git = "https://github.com/rcore-os/virtio-drivers" }
+virtio-drivers = { git = "https://github.com/rcore-os/virtio-drivers", rev = "93f821c" }
 easy-fs = { path = "../easy-fs" }
 
 [profile.release]
 debug = true
-opt-level = 0
\ No newline at end of file
+opt-level = 0
diff --git a/os7-ref/Cargo.toml b/os7-ref/Cargo.toml
index 4dcee45..4df43a7 100644
--- a/os7-ref/Cargo.toml
+++ b/os7-ref/Cargo.toml
@@ -19,4 +19,4 @@ easy-fs = { path = "../easy-fs" }
 
 [profile.release]
 debug = true
-opt-level = 0
\ No newline at end of file
+opt-level = 0
diff --git a/os7/Cargo.toml b/os7/Cargo.toml
index 4dcee45..4df43a7 100644
--- a/os7/Cargo.toml
+++ b/os7/Cargo.toml
@@ -19,4 +19,4 @@ easy-fs = { path = "../easy-fs" }
 
 [profile.release]
 debug = true
-opt-level = 0
\ No newline at end of file
+opt-level = 0
diff --git a/os8-ref/Cargo.toml b/os8-ref/Cargo.toml
index 36e0e64..2f93010 100644
--- a/os8-ref/Cargo.toml
+++ b/os8-ref/Cargo.toml
@@ -20,4 +20,4 @@ easy-fs = { path = "../easy-fs" }
 [profile.release]
 debug = true
 opt-level = 0
-# opt-level = "s"
\ No newline at end of file
+# opt-level = "s"
diff --git a/os8/Cargo.toml b/os8/Cargo.toml
index 4dcee45..86f4964 100644
--- a/os8/Cargo.toml
+++ b/os8/Cargo.toml
@@ -14,9 +14,9 @@ log = "0.4"
 riscv = { git = "https://github.com/rcore-os/riscv", features = ["inline-asm"] }
 lock_api = "=0.4.6"
 xmas-elf = "0.7.0"
-virtio-drivers = { git = "https://github.com/rcore-os/virtio-drivers" }
+virtio-drivers = { git = "https://github.com/rcore-os/virtio-drivers", rev = "93f821c" }
 easy-fs = { path = "../easy-fs" }
 
 [profile.release]
 debug = true
-opt-level = 0
\ No newline at end of file
+opt-level = 0
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 021659c..fb29f84 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,5 +1,5 @@
 [toolchain]
 profile = "minimal"
-channel = "nightly-2022-08-05"
+channel = "nightly-2022-09-16"
 components = ["rust-src", "llvm-tools-preview", "rustfmt", "clippy"]
 targets = ["riscv64gc-unknown-none-elf"]