diff --git a/CHANGELOG.md b/CHANGELOG.md
index e1de6da..5e90a8b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 0.4.0
+Stable null-safety support. (#278)
+
 ## 0.3.5
 #### Bug fixes
 * Fixed QRView opening zoomed in on some devices by adding small delay to updateDimensions(). (#250)
diff --git a/pubspec.yaml b/pubspec.yaml
index bdddd05..722fd49 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: qr_code_scanner
 description: QR code scanner that can be embedded inside flutter. It uses zxing in Android and MTBBarcode scanner in iOS.
-version: 0.3.5
+version: 0.4.0
 homepage: https://juliuscanute.com
 repository: https://github.com/juliuscanute/qr_code_scanner