diff --git a/Cargo.lock b/Cargo.lock
index 1b1d93a..6bd1390 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -143,7 +143,6 @@ dependencies = [
  "humantime 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
  "stderrlog 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "structopt 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "subprocess 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -298,6 +297,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "serde"
 version = "1.0.89"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "serde_derive"
diff --git a/Cargo.toml b/Cargo.toml
index 35a5ce0..6bdb575 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,15 +2,15 @@
 name = "isp-uptime"
 version = "0.1.0"
 authors = ["Anders Olsson <anders.e.olsson@gmail.com>"]
+edition = "2018"
 
 [dependencies]
 chrono = "0.4"
-handlebars = { version = "1.0", features = ["no_dir_source"], default-features = false}
-humantime = "1.1"
+handlebars = { version = "1.1", features = ["no_dir_source"], default-features = false}
+humantime = "1.2"
 log = "0.4"
 stderrlog = "0.4"
-serde = "1.0"
-serde_derive = "1.0"
+serde = { version = "1.0", features = ["derive"] }
 structopt = "0.2"
 subprocess = "0.1"
 toml = "0.5"
diff --git a/src/lib.rs b/src/lib.rs
index c154b82..2622dff 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,17 +1,8 @@
-extern crate chrono;
-extern crate handlebars;
-extern crate humantime;
-#[macro_use]
-extern crate log;
-extern crate stderrlog;
-#[macro_use]
-extern crate serde_derive;
-extern crate subprocess;
-extern crate toml;
-
 use std::collections::HashMap;
 
 use log::Level::Debug;
+use log::{debug, info, log_enabled};
+use serde::Deserialize;
 use subprocess::Exec;
 
 #[derive(Debug, Deserialize)]
diff --git a/src/main.rs b/src/main.rs
index 4906f77..be25eca 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,17 +1,3 @@
-extern crate chrono;
-extern crate handlebars;
-extern crate humantime;
-#[macro_use]
-extern crate log;
-extern crate stderrlog;
-#[macro_use]
-extern crate serde_derive;
-#[macro_use]
-extern crate structopt;
-extern crate isp_uptime;
-extern crate subprocess;
-extern crate toml;
-
 use std::fs;
 use std::io::{self, Read, Write};
 use std::path::PathBuf;