diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1fbb54c..4707541 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 1.5.1-dev
+## 1.5.1
 
 * Added more comprehensive word wrapping when `usageLineLength` is set.
 
diff --git a/pubspec.yaml b/pubspec.yaml
index f68421b..296b839 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: args
-version: 1.5.1-dev
+version: 1.5.1
 author: "Dart Team <misc@dartlang.org>"
 homepage: https://github.com/dart-lang/args
 description: >
@@ -10,4 +10,4 @@
   sdk: '>=1.22.0 <3.0.0'
 
 dev_dependencies:
-  test: '>=0.12.0 <2.0.0'
+  test: '^1.5.1'