diff --git a/Cargo.lock b/Cargo.lock
index e975622..05c384a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -368,7 +368,6 @@ dependencies = [
  "ckb-types",
  "ckb-vm",
  "hex",
- "js-sys",
  "regex 1.9.5",
  "serde",
  "serde_json",
@@ -668,7 +667,6 @@ dependencies = [
  "bytes",
  "ckb-gdb-remote-protocol",
  "ckb-vm",
- "env_logger 0.4.3",
  "gdbstub",
  "gdbstub_arch",
  "libc",
@@ -1144,15 +1142,6 @@ version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "af150ab688ff2122fcef229be89cb50dd66af9e01a4ff320cc137eecc9bacc38"
 
-[[package]]
-name = "js-sys"
-version = "0.3.64"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5f195fe497f702db0f318b07fdd68edb16955aed830df8363d837542f8f935a"
-dependencies = [
- "wasm-bindgen",
-]
-
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
diff --git a/ckb-debugger-api/Cargo.toml b/ckb-debugger-api/Cargo.toml
index 57af4c8..a0754f3 100644
--- a/ckb-debugger-api/Cargo.toml
+++ b/ckb-debugger-api/Cargo.toml
@@ -18,7 +18,6 @@ ckb-script = { version = "=0.111.0", default-features = false }
 ckb-types = "=0.111.0"
 ckb-vm = "=0.24.6"
 hex = "0.4"
-js-sys = "0.3.27"
 regex = "1"
 serde = { version="1.0", features = ["derive"] }
 serde_json = "1.0"
diff --git a/ckb-debugger/src/main.rs b/ckb-debugger/src/main.rs
index 41d6740..932ad78 100644
--- a/ckb-debugger/src/main.rs
+++ b/ckb-debugger/src/main.rs
@@ -195,7 +195,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     let matches_args = matches.values_of("args").unwrap_or_default();
     let matches_read_file_name = matches.value_of("read-file");
 
-    let verifier_args: Vec<String> = matches_args.into_iter().map(|s| s.clone().into()).collect();
+    let verifier_args: Vec<String> = matches_args.into_iter().map(|s| s.into()).collect();
     let verifier_args_byte: Vec<Bytes> = verifier_args.into_iter().map(|s| s.into()).collect();
 
     let fs_syscall = if let Some(file_name) = matches_read_file_name {
diff --git a/ckb-gdb-remote-protocol/Cargo.toml b/ckb-gdb-remote-protocol/Cargo.toml
index c4524e5..a6a8900 100644
--- a/ckb-gdb-remote-protocol/Cargo.toml
+++ b/ckb-gdb-remote-protocol/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ckb-gdb-remote-protocol"
-edition = "2018"
+edition = "2021"
 version = "0.111.0"
 description = "An implementation of the GDB remote protocol"
 authors = ["Ted Mielczarek <ted@mielczarek.org>"]
diff --git a/ckb-vm-debug-utils/Cargo.toml b/ckb-vm-debug-utils/Cargo.toml
index 7210397..5109680 100644
--- a/ckb-vm-debug-utils/Cargo.toml
+++ b/ckb-vm-debug-utils/Cargo.toml
@@ -14,7 +14,6 @@ stdio = ["libc", "nix"]
 byteorder = "1"
 bytes = "1.0.0"
 ckb-vm = "=0.24.6"
-env_logger = "0.4.3"
 ckb-gdb-remote-protocol = { path = "../ckb-gdb-remote-protocol", version="0.111.0" }
 libc = { version = "0.2.47", optional = true }
 log = "0.4.0"
diff --git a/ckb-vm-pprof-protos/Cargo.toml b/ckb-vm-pprof-protos/Cargo.toml
index 743e670..8170a6b 100644
--- a/ckb-vm-pprof-protos/Cargo.toml
+++ b/ckb-vm-pprof-protos/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "ckb-vm-pprof-protos"
 version = "0.111.0"
-edition = "2018"
+edition = "2021"
 description = "Crate for generating Rust definitions from pprof proto"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
diff --git a/ckb-vm-signal-profiler/Cargo.toml b/ckb-vm-signal-profiler/Cargo.toml
index 4f8d3e0..02b80f3 100644
--- a/ckb-vm-signal-profiler/Cargo.toml
+++ b/ckb-vm-signal-profiler/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "ckb-vm-signal-profiler"
 version = "0.111.0"
-edition = "2018"
+edition = "2021"
 description = "Linux signal based profiler for ckb-vm, note this is profiling ckb-vm itself, not the programs running in ckb-vm"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html