diff --git a/.travis.yml b/.travis.yml
index 6feaf39..2c7fa11 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 sudo: false
 language: rust
 rust:
-- nightly-2017-09-26
+- nightly-2017-12-18
 env:
   global:
     - TRAVIS_CARGO_NIGHTLY_FEATURE=""
@@ -23,6 +23,6 @@ script:
 - |
   travis-cargo build -- "${CARGO_FLAGS}" &&
   travis-cargo test -- "${CARGO_FLAGS}" &&
-  travis-cargo --only nightly-2017-09-26 doc -- --no-deps "${CARGO_FLAGS}"
+  travis-cargo --only nightly-2017-12-18 doc -- --no-deps "${CARGO_FLAGS}"
 after_success:
-- test $CARGO_FLAGS = "--all-features" && travis-cargo --only nightly-2017-09-26 doc-upload
+- test $CARGO_FLAGS = "--all-features" && travis-cargo --only nightly-2017-12-18 doc-upload
diff --git a/README.md b/README.md
index 3b1d2d3..d270326 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ 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-2017-09-26`. Newer nightlies
+In particular, `rocket_cors` is currently targetted for `nightly-2017-12-18`. Newer nightlies
 might work, but it's not guaranteed.
 
 ## Installation
diff --git a/build.rs b/build.rs
index cac0084..81469cf 100644
--- a/build.rs
+++ b/build.rs
@@ -11,8 +11,8 @@ 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 = "2017-09-25";
-const MIN_VERSION: &'static str = "1.22.0-nightly";
+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 {
diff --git a/rust-toolchain b/rust-toolchain
index 88b515d..dac456d 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-nightly-2017-09-26
+nightly-2017-12-18