diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9132b57..64d6cd5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 0.17.0-nullsafety-dev
+## 0.17.0-nullsafety.0
 
 - `Font.merge` and `BoxEdge.merge` are now static methods instead of factory
   constructors.
diff --git a/pubspec.yaml b/pubspec.yaml
index d839231..412a235 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: csslib
-version: 0.17.0-nullsafety-dev
+version: 0.17.0-nullsafety.0
 
 description: A library for parsing CSS.
 homepage: https://github.com/dart-lang/csslib