diff --git a/pubspec.yaml b/pubspec.yaml
index 3b54d7a..882581d 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: bottom_navy_bar
 description: A beautiful and animated bottom navigation. The navigation bar use your current theme, but you are free to customize it.
-version: 6.0.0
+version: 6.0.0-nullsafety.0
 homepage: https://github.com/pedromassango/bottom_navy_bar
 
 environment: