diff --git a/Cargo.lock b/Cargo.lock
index 5da6428b..8e1cbe5a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,29 +1,5 @@
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 # It is not intended for manual editing.
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@@ -56,20 +32,6 @@ version = "1.0.1"
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 dependencies = [
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+ "cfg-if",
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@@ -175,7 +112,7 @@ version = "0.8.0"
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 dependencies = [
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+ "cfg-if",
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@@ -186,7 +123,7 @@ version = "0.9.1"
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 checksum = "a1aaa739f95311c2c7887a76863f500026092fb1dce0161dab577e559ef3569d"
 dependencies = [
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+ "cfg-if",
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@@ -201,52 +138,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "cfg-if",
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@@ -279,13 +174,13 @@ dependencies = [
 
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+checksum = "1d34cfa13a63ae058bfa601fe9e313bbdb3746427c1459185464ce0fcf62e1e8"
 dependencies = [
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+ "cfg-if",
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@@ -764,18 +401,18 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
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 dependencies = [
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@@ -800,29 +437,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ce3cdf1b5e620a498ee6f2a171885ac7e22f0e12089ec4b3d22b84921792507c"
 dependencies = [
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@@ -855,43 +475,20 @@ dependencies = [
 
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-dependencies = [
- "cfg-if 1.0.0",
- "libc",
- "rand",
- "redox_syscall 0.2.4",
- "remove_dir_all",
- "winapi",
-]
-
-[[package]]
-name = "termcolor"
-version = "1.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dfed899f0eb03f32ee8c6a0aabdb8a7949659e3466561fc0adf54e26d88c5f4"
-dependencies = [
- "winapi-util",
-]
-
 [[package]]
 name = "terminal_size"
-version = "0.1.15"
+version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bd2d183bd3fac5f5fe38ddbeb4dc9aec4a39a9d7d59e7491d900302da01cbe1"
+checksum = "86ca8ced750734db02076f44132d802af0b33b09942331f4459dde8636fd2406"
 dependencies = [
  "libc",
  "winapi",
@@ -906,45 +503,6 @@ dependencies = [
  "unicode-width",
 ]
 
-[[package]]
-name = "thiserror"
-version = "1.0.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76cc616c6abf8c8928e2fdcc0dbfab37175edd8fb49a4641066ad1364fdab146"
-dependencies = [
- "thiserror-impl",
-]
-
-[[package]]
-name = "thiserror-impl"
-version = "1.0.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9be73a2caec27583d0046ef3796c3794f868a5bc813db689eed00c7631275cd1"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
-name = "thread_local"
-version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb9bc092d0d51e76b2b19d9d85534ffc9ec2db959a2523cdae0697e2972cd447"
-dependencies = [
- "lazy_static",
-]
-
-[[package]]
-name = "time"
-version = "0.1.43"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
-dependencies = [
- "libc",
- "winapi",
-]
-
 [[package]]
 name = "toml"
 version = "0.5.8"
@@ -978,21 +536,6 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
 
-[[package]]
-name = "uuid"
-version = "0.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc5cf98d8186244414c848017f0e2676b3fcb46807f6668a97dfe67359a3c4b7"
-dependencies = [
- "getrandom",
-]
-
-[[package]]
-name = "vcpkg"
-version = "0.2.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b00bca6106a5e23f3eee943593759b7fcddb00554332e856d990c893966879fb"
-
 [[package]]
 name = "vec_map"
 version = "0.8.2"
@@ -1005,33 +548,6 @@ version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
 
-[[package]]
-name = "walkdir"
-version = "2.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "777182bc735b6424e1a57516d35ed72cb8019d85c8c9bf536dccb3445c1a2f7d"
-dependencies = [
- "same-file",
- "winapi",
- "winapi-util",
-]
-
-[[package]]
-name = "wasi"
-version = "0.10.1+wasi-snapshot-preview1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93c6c3420963c5c64bca373b25e77acb562081b9bb4dd5bb864187742186cea9"
-
-[[package]]
-name = "which"
-version = "4.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87c14ef7e1b8b8ecfc75d5eca37949410046e66f15d185c01d70824f1f8111ef"
-dependencies = [
- "libc",
- "thiserror",
-]
-
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -1077,9 +593,3 @@ name = "xshell-macros"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f6af9f8119104697b0105989a73c578ce33f922d9d6f3dae0e8ae3d538db321"
-
-[[package]]
-name = "zeroize"
-version = "0.9.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "45af6a010d13e4cf5b54c94ba5a2b2eba5596b9e46bf5875612d332a1f2b3f86"
diff --git a/Cargo.toml b/Cargo.toml
index da41868b..f34043ab 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,23 +8,16 @@ edition = "2018"
 
 [dependencies]
 anyhow = "1.0"
-chrono = "0.4"
 console = "0.13"
-curl = "0.4"
-dialoguer = "0.7"
 env_logger = { version = "0.8", default-features = false }
 filetime = "0.2"
 glob = "0.3"
 hex = "0.4"
-human-panic = "1.0"
 log = "0.4"
-parking_lot = "0.11"
 rayon = "1.5.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 sha-1 = "0.9.2"
 structopt = "0.3"
 toml = "0.5"
-walkdir = "2.3"
-which = "4.0"
 xshell = "0.1"
diff --git a/src/command/mod.rs b/src/command/mod.rs
index ffa47133..48a46bc4 100644
--- a/src/command/mod.rs
+++ b/src/command/mod.rs
@@ -5,6 +5,7 @@ mod init;
 
 use self::init::init_prjfmt;
 use std::path::PathBuf;
+use structopt::StructOpt;
 
 use log::info;
 
diff --git a/src/lib.rs b/src/lib.rs
index 2ef1a8b6..499fd3d9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2,23 +2,6 @@
 
 #![deny(missing_docs)]
 
-extern crate anyhow;
-extern crate console;
-extern crate glob;
-extern crate parking_lot;
-extern crate which;
-#[macro_use]
-extern crate structopt;
-extern crate chrono;
-extern crate curl;
-extern crate dialoguer;
-extern crate hex;
-extern crate log;
-extern crate serde;
-extern crate sha1;
-extern crate toml;
-extern crate walkdir;
-
 pub mod command;
 pub mod customlog;
 pub mod emoji;
@@ -29,6 +12,7 @@ use command::run_prjfmt_cli;
 use formatters::tool::run_prjfmt;
 use std::env;
 use std::path::{Path, PathBuf};
+use structopt::StructOpt;
 
 use customlog::{CustomLogOutput, LogLevel};
 use xshell::cmd;
diff --git a/src/main.rs b/src/main.rs
index c3953e62..64e729e8 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,11 +2,9 @@
 
 extern crate anyhow;
 extern crate env_logger;
-extern crate human_panic;
 extern crate log;
 extern crate prjfmt;
 extern crate structopt;
-extern crate which;
 
 use prjfmt::{run_cli, Cli, CLOG};
 use structopt::StructOpt;