diff --git a/.travis.yml b/.travis.yml
index 2c7fa11..0c9fc8e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,9 @@
 sudo: false
 language: rust
 rust:
-- nightly-2017-12-18
+- nightly
+# Minimum Rust set by Rocket
+- nightly-2018-01-13
 env:
   global:
     - TRAVIS_CARGO_NIGHTLY_FEATURE=""
@@ -19,10 +21,12 @@ before_script:
 - |
   pip install 'travis-cargo<0.2' --user &&
   export PATH=$HOME/.local/bin:$PATH
+# Remove rust-toolchain override for tests
+- rm rust-toolchain
 script:
 - |
   travis-cargo build -- "${CARGO_FLAGS}" &&
   travis-cargo test -- "${CARGO_FLAGS}" &&
-  travis-cargo --only nightly-2017-12-18 doc -- --no-deps "${CARGO_FLAGS}"
+  travis-cargo --only nightly doc -- --no-deps "${CARGO_FLAGS}"
 after_success:
-- test $CARGO_FLAGS = "--all-features" && travis-cargo --only nightly-2017-12-18 doc-upload
+- test $CARGO_FLAGS = "--all-features" && travis-cargo --only nightly doc-upload
diff --git a/Cargo.toml b/Cargo.toml
index b409e47..f77236e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,6 @@ name = "rocket_cors"
 version = "0.2.1"
 license = "Apache-2.0"
 authors = ["Yong Wen Chua <me@yongwen.xyz>"]
-build = "build.rs"
 description = "Cross-origin resource sharing (CORS) for Rocket.rs applications"
 homepage = "https://github.com/lawliet89/rocket_cors"
 repository = "https://github.com/lawliet89/rocket_cors"
@@ -22,7 +21,7 @@ serialization = ["serde", "serde_derive", "unicase_serde", "url_serde"]
 
 [dependencies]
 log = "0.3"
-rocket = "0.3"
+rocket = "0.3.6"
 unicase = "2.0"
 url = "1.5.1"
 
@@ -32,10 +31,6 @@ serde_derive = { version = "1.0", optional = true }
 unicase_serde = { version = "0.1.0", optional = true }
 url_serde = { version = "0.2.0", optional = true }
 
-[build-dependencies]
-ansi_term = "0.9"
-version_check = "0.1"
-
 [dev-dependencies]
 hyper = "0.10"
 rocket_codegen = "0.3"
diff --git a/README.md b/README.md
index d270326..5e14762 100644
--- a/README.md
+++ b/README.md
@@ -21,8 +21,8 @@ Rocket requires nightly Rust. You should probably install Rust with
 See
 [installation instructions](https://rocket.rs/guide/getting-started/#installing-rust).
 
-In particular, `rocket_cors` is currently targetted for `nightly-2017-12-18`. Newer nightlies
-might work, but it's not guaranteed.
+In particular, `rocket_cors` is currently targetted for the latest `nightly`. Older nightlies might
+work, but they are subject to the minimum that Rocket sets.
 
 ## Installation
 
diff --git a/build.rs b/build.rs
deleted file mode 100644
index 81469cf..0000000
--- a/build.rs
+++ /dev/null
@@ -1,86 +0,0 @@
-//! This tiny build script ensures that the crate is not compiled with an
-//! incompatible version of rust.
-//! This scipt was stolen from `rocket_codegen`.
-
-extern crate ansi_term;
-extern crate version_check;
-
-use ansi_term::Color::{Red, Yellow, Blue, White};
-use version_check::{is_nightly, is_min_version, is_min_date};
-
-// Specifies the minimum nightly version that is targetted
-// Note that sometimes the `rustc` date might be older than the nightly version,
-// usually one day older
-const MIN_DATE: &'static str = "2017-12-17";
-const MIN_VERSION: &'static str = "1.24.0-nightly";
-
-// Convenience macro for writing to stderr.
-macro_rules! printerr {
-    ($($arg:tt)*) => ({
-        use std::io::prelude::*;
-        write!(&mut ::std::io::stderr(), "{}\n", format_args!($($arg)*))
-            .expect("Failed to write to stderr.")
-    })
-}
-
-fn main() {
-    let ok_nightly = is_nightly();
-    let ok_version = is_min_version(MIN_VERSION);
-    let ok_date = is_min_date(MIN_DATE);
-
-    let print_version_err = |version: &str, date: &str| {
-        printerr!(
-            "{} {}. {} {}.",
-            White.paint("Installed version is:"),
-            Yellow.paint(format!("{} ({})", version, date)),
-            White.paint("Minimum required:"),
-            Yellow.paint(format!("{} ({})", MIN_VERSION, MIN_DATE))
-        );
-    };
-
-    match (ok_nightly, ok_version, ok_date) {
-        (Some(is_nightly), Some((ok_version, version)), Some((ok_date, date))) => {
-            if !is_nightly {
-                printerr!(
-                    "{} {}",
-                    Red.bold().paint("Error:"),
-                    White.paint("rocket_cors requires a nightly version of Rust.")
-                );
-                print_version_err(&*version, &*date);
-                printerr!(
-                    "{}{}{}",
-                    Blue.paint("See the README ("),
-                    White.paint("https://github.com/lawliet89/rocket_cors"),
-                    Blue.paint(") for more information.")
-                );
-                panic!("Aborting compilation due to incompatible compiler.")
-            }
-
-            if !ok_version || !ok_date {
-                printerr!(
-                    "{} {}",
-                    Red.bold().paint("Error:"),
-                    White.paint("rocket_cors requires a more recent version of rustc.")
-                );
-                printerr!(
-                    "{}{}{}",
-                    Blue.paint("Use `"),
-                    White.paint("rustup update"),
-                    Blue.paint("` or your preferred method to update Rust.")
-                );
-                print_version_err(&*version, &*date);
-                panic!("Aborting compilation due to incompatible compiler.")
-            }
-        }
-        _ => {
-            println!(
-                "cargo:warning={}",
-                "rocket_cors was unable to check rustc compatibility."
-            );
-            println!(
-                "cargo:warning={}",
-                "Build may fail due to incompatible rustc version."
-            );
-        }
-    }
-}
diff --git a/rust-toolchain b/rust-toolchain
index dac456d..bf867e0 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-nightly-2017-12-18
+nightly
diff --git a/src/lib.rs b/src/lib.rs
index 682203b..1207505 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -485,7 +485,6 @@
     dead_code,
     deprecated,
     exceeding_bitshifts,
-    fat_ptr_transmutes,
     improper_ctypes,
     missing_docs,
     mutable_transmutes,