stable null safety release (#56)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4b6d8ce..92a3b28 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.3.0
+
+- Stable null safety release.
+
 ## 0.3.0-nullsafety.0
 
 - Updated to support 2.12.0 and null safety.
diff --git a/pubspec.yaml b/pubspec.yaml
index fbf3018..9386c55 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: cli_util
-version: 0.3.0-nullsafety.0
+version: 0.3.0
 description: A library to help in building Dart command-line apps.
 homepage: https://github.com/dart-lang/cli_util
 
@@ -7,9 +7,9 @@
   sdk: '>=2.12.0-0 <3.0.0'
 
 dependencies:
-  meta: ^1.3.0-nullsafety
-  path: ^1.8.0-nullsafety
+  meta: ^1.3.0
+  path: ^1.8.0
 
 dev_dependencies:
-  pedantic: ^1.10.0-nullsafety
-  test: ^1.16.0-nullsafety
+  pedantic: ^1.10.0
+  test: ^1.16.0