stable null safety release (#180)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7670a41..d5de6a9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.0.0
+
+* Stable null safety release.
+
 ## 2.0.0-nullsafety.0
 
 * Migrate to null safety.
diff --git a/pubspec.yaml b/pubspec.yaml
index 4649817..f39c81f 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: args
-version: 2.0.0-nullsafety.0
+version: 2.0.0
 homepage: https://github.com/dart-lang/args
 description: >-
  Library for defining parsers for parsing raw command-line arguments into a set
@@ -9,8 +9,8 @@
   sdk: '>=2.12.0-0 <3.0.0'
 
 dev_dependencies:
-  pedantic: ^1.10.0-nullsafety.3
-  test: ^1.16.0-nullsafety.9
+  pedantic: ^1.10.0
+  test: ^1.16.0
 
 # Required to get a version solve due to cyclic dependency
 dependency_overrides: