diff --git a/CHANGELOG.md b/CHANGELOG.md
index 06f5e4e..2d96375 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## [4.0.0-nullsafety.1] - 20.11.2020
+
+* Update example to support null safety
+* Add pedantic for code analysis
+* Bugfixes: Fix bug where removeListener is called on null [Issue #64](https://github.com/Dimibe/grouped_list/issues/64) 
+
 ## [4.0.0-nullsafety.0] - 20.11.2020
 
 * New feature: Add support for null safety.
diff --git a/README.md b/README.md
index c03c24b..af9245d 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 [![Pub](https://img.shields.io/pub/v/grouped_list.svg)](https://pub.dev/packages/grouped_list)
 ![CI](https://github.com/Dimibe/grouped_list/workflows/CI/badge.svg?branch=master)
 
-##### Now with beta support for null safety! 
+#### Now with beta support for null safety! 
  
 A flutter `ListView` in which list items can be grouped to sections.
 
@@ -19,14 +19,8 @@ A flutter `ListView` in which list items can be grouped to sections.
 
 Add the package to your pubspec.yaml:
 
-Lates stable: 
- ```yaml
- grouped_list: ^3.7.0
- ```
-
- *or:* Prerelease with null safety support: 
-  ```yaml
- grouped_list: ^4.0.0-nullsafety.0
+```yaml
+ grouped_list: ^4.0.0-nullsafety.1
  ```
  
  In your dart file, import the library:
diff --git a/example/pubspec.lock b/example/pubspec.lock
index b3068d3..befbc73 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -66,7 +66,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "4.0.0-nullsafety.0"
+    version: "4.0.0-nullsafety.1"
   intl:
     dependency: "direct main"
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index c01d6b3..79347a2 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: grouped_list
 description: A Flutter ListView where the list items can be grouped into sections.
-version: 4.0.0-nullsafety.0
+version: 4.0.0-nullsafety.1
 homepage: https://begnis.dev
 repository: https://github.com/Dimibe/grouped_list