diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index e4a67252..c0a58083 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -28,8 +28,8 @@ time = "0.1"
 memchr = "1"
 base64 = "0.6"
 smallvec = "0.4"
-pear = "0.0.13"
-pear_codegen = "0.0.13"
+pear = "0.0"
+pear_codegen = "0.0"
 rustls = { version = "0.9.0", optional = true }
 cookie = { version = "0.9.1", features = ["percent-encode", "secure"] }
 hyper = { version = "0.10.11", default-features = false }
diff --git a/lib/build.rs b/lib/build.rs
index 00110ab5..97aa7b18 100644
--- a/lib/build.rs
+++ b/lib/build.rs
@@ -8,8 +8,8 @@ use yansi::Color::{Red, Yellow, Blue, White};
 use version_check::{supports_features, is_min_version, is_min_date};
 
 // Specifies the minimum nightly version needed to compile Rocket.
-const MIN_DATE: &'static str = "2018-01-12";
-const MIN_VERSION: &'static str = "1.25.0-nightly";
+const MIN_DATE: &'static str = "2018-04-03";
+const MIN_VERSION: &'static str = "1.27.0-nightly";
 
 fn main() {
     let ok_channel = supports_features();