diff --git a/core/codegen/build.rs b/core/codegen/build.rs
index 66fb1a67..68a0afc2 100644
--- a/core/codegen/build.rs
+++ b/core/codegen/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's codegen.
-const MIN_DATE: &'static str = "2018-07-16";
-const MIN_VERSION: &'static str = "1.29.0-nightly";
+const MIN_DATE: &'static str = "2018-08-14";
+const MIN_VERSION: &'static str = "1.30.0-nightly";
 
 fn main() {
     let ok_channel = supports_features();
diff --git a/core/codegen/src/macros/uri.rs b/core/codegen/src/macros/uri.rs
index 06d8eed6..4df3defd 100644
--- a/core/codegen/src/macros/uri.rs
+++ b/core/codegen/src/macros/uri.rs
@@ -37,7 +37,7 @@ pub fn uri(
             delim: MacDelimiter::Parenthesis,
             tts: args.to_vec().into_iter().collect::<TokenStream>().into(),
         },
-        ::syntax::util::ThinVec::new(),
+        ::syntax::ThinVec::new(),
     );
 
     MacEager::expr(expr)