diff --git a/Cargo.toml b/Cargo.toml
index 6444e9a..618cccf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,6 +11,8 @@ readme = "README.md"
 repository = "https://github.com/FauxFaux/apt-pkg-native-rs"
 version = "0.3.0"
 
+edition = "2018"
+
 [badges.travis-ci]
 repository = "FauxFaux/apt-pkg-native-rs"
 
diff --git a/examples/epochs.rs b/examples/epochs.rs
index 78574e8..df21bda 100644
--- a/examples/epochs.rs
+++ b/examples/epochs.rs
@@ -1,6 +1,3 @@
-extern crate apt_pkg_native;
-extern crate boolinator;
-
 use apt_pkg_native::Cache;
 
 use boolinator::Boolinator;
diff --git a/examples/list.rs b/examples/list.rs
index 87e79f0..4fe35e0 100644
--- a/examples/list.rs
+++ b/examples/list.rs
@@ -1,6 +1,3 @@
-extern crate apt_pkg_native;
-extern crate itertools;
-
 use itertools::Itertools;
 
 use apt_pkg_native::simple;
diff --git a/examples/policy.rs b/examples/policy.rs
index a1abbc7..02ab3b5 100644
--- a/examples/policy.rs
+++ b/examples/policy.rs
@@ -1,4 +1,3 @@
-extern crate apt_pkg_native;
 use std::env;
 
 use apt_pkg_native::simple;
diff --git a/examples/sources.rs b/examples/sources.rs
index 29d0a9f..d8e56d4 100644
--- a/examples/sources.rs
+++ b/examples/sources.rs
@@ -1,3 +1,5 @@
+use std::collections::HashMap;
+use std::collections::HashSet;
 /// A port of a randomly selected Python program:
 ///
 /// ```python
@@ -23,12 +25,8 @@
 ///         for ver in sorted(sources[src]):
 ///             print('{}={}'.format(src, ver))
 /// ```
-extern crate apt_pkg_native;
 use std::env;
 
-use std::collections::HashMap;
-use std::collections::HashSet;
-
 use apt_pkg_native::Cache;
 
 fn main() {
diff --git a/src/lib.rs b/src/lib.rs
index 0276274..ff9ee34 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -31,16 +31,12 @@
 //! `libapt-pkg` also just segfaults if you do anything wrong, or re-use anything at the wrong time,
 //! or etc. I've tried to hide this, but I advise you not to push or outsmart the borrow checker.
 
-#[macro_use]
-extern crate lazy_static;
-extern crate libc;
-
 mod citer;
 mod raw;
 mod sane;
 pub mod simple;
 
-pub use sane::Cache;
+pub use crate::sane::Cache;
 
 #[cfg(test)]
 mod tests {
diff --git a/src/raw.rs b/src/raw.rs
index c39b229..7bdd0a9 100644
--- a/src/raw.rs
+++ b/src/raw.rs
@@ -4,6 +4,7 @@
 ///  * `*mut c_chars` are to be freed by `libc::free`.
 use std::sync::Mutex;
 
+use lazy_static::lazy_static;
 use libc::c_char;
 use libc::c_void;
 
diff --git a/src/sane.rs b/src/sane.rs
index bcb98db..d4efad0 100644
--- a/src/sane.rs
+++ b/src/sane.rs
@@ -4,10 +4,10 @@ use std::marker::PhantomData;
 use std::sync::MutexGuard;
 
 use libc;
-use raw;
 
-use citer::CIterator;
-use citer::RawIterator;
+use crate::citer::CIterator;
+use crate::citer::RawIterator;
+use crate::raw;
 
 /// A reference to the package cache singleton,
 /// from which most functionality can be accessed.
diff --git a/src/simple.rs b/src/simple.rs
index 861f44e..c16b3d4 100644
--- a/src/simple.rs
+++ b/src/simple.rs
@@ -2,7 +2,7 @@
 
 use std::fmt;
 
-use sane;
+use crate::sane;
 
 #[derive(Clone, Debug)]
 pub struct BinaryPackage {