diff --git a/Cargo.lock b/Cargo.lock
index 2741a7ad..c359307a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -105,17 +105,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "atty"
-version = "0.2.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
-dependencies = [
- "hermit-abi 0.1.19",
- "libc",
- "winapi",
-]
-
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -618,12 +607,12 @@ dependencies = [
 
 [[package]]
 name = "env_logger"
-version = "0.9.3"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a12e6657c4c97ebab115a42dcee77225f7f482cdd841cf7088c657a42e9e00e7"
+checksum = "85cdab6a89accf66733ad5a1693a4dcced6aeff64602b634530dd73c1f3ee9f0"
 dependencies = [
- "atty",
  "humantime",
+ "is-terminal",
  "log",
  "regex",
  "termcolor",
diff --git a/Cargo.toml b/Cargo.toml
index c1f7741d..a6741785 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -174,6 +174,6 @@ daemonize = "0.4"
 
 [dev-dependencies]
 byteorder = "1.3"
-env_logger = "0.9"
+env_logger = "0.10"
 byte_string = "1.0"
 tokio = { version = "1", features = ["net", "time", "macros", "io-util"] }
diff --git a/crates/shadowsocks-service/Cargo.toml b/crates/shadowsocks-service/Cargo.toml
index 19bc4d2a..94a016b0 100644
--- a/crates/shadowsocks-service/Cargo.toml
+++ b/crates/shadowsocks-service/Cargo.toml
@@ -133,7 +133,7 @@ windows-sys = { version = "0.42", features = ["Win32_Networking_WinSock"] }
 
 [dev-dependencies]
 byteorder = "1.3"
-env_logger = "0.9"
+env_logger = "0.10"
 
 [package.metadata.docs.rs]
 features = ["full", "local-http-rustls", "local-dns", "dns-over-tls", "dns-over-https"]
diff --git a/crates/shadowsocks/Cargo.toml b/crates/shadowsocks/Cargo.toml
index e2dbc1ac..aec42c81 100644
--- a/crates/shadowsocks/Cargo.toml
+++ b/crates/shadowsocks/Cargo.toml
@@ -90,4 +90,4 @@ windows-sys = { version = "0.42", features = ["Win32_Foundation", "Win32_Network
 sendfd = { version = "0.4", features = ["tokio"] }
 
 [dev-dependencies]
-env_logger = "0.9"
+env_logger = "0.10"