diff --git a/.travis.yml b/.travis.yml
index 9e27d1f..96ba4fc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,4 @@
 language: dart
+dart: dev
 sudo: false
 script: ./tool/travis.sh
diff --git a/changelog.md b/changelog.md
index 674bef0..3abc692 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,9 +1,9 @@
 # Changelog
 
-## 3.0.2
-- switch the method we use to determine the locale to the new dart:io
+## 3.1.0
+- switch the technique we use to determine the locale to the new dart:io
   `Platform.localeName` field
-- change our minimum SDK version to `1.23.0`
+- change our minimum SDK version to `1.24.0`
 
 ## 3.0.1
 - expose the `Analytics.clientId` field
diff --git a/pubspec.yaml b/pubspec.yaml
index 517e475..b0cc22a 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -3,13 +3,13 @@
 # BSD-style license that can be found in the LICENSE file.
 
 name: usage
-version: 3.0.2
+version: 3.1.0
 description: A Google Analytics wrapper for both command-line, web, and Flutter apps.
 homepage: https://github.com/dart-lang/usage
 author: Dart Team <misc@dartlang.org>
 
 environment:
-  sdk: '>=1.23.0-dev.11.7 <2.0.0'
+  sdk: '>=1.24.0-dev.0.0 <2.0.0'
 
 dependencies:
   path: ^1.4.0