diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f23d572..bc086b88 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -102,4 +102,7 @@
 * Fix cursor focus issue when keyboard is on.
 
 ## [0.3.3]
-* More fix on cursor focus issue when keyboard is on.
\ No newline at end of file
+* More fix on cursor focus issue when keyboard is on.
+
+## [1.0.0-dev.1]
+* Upgrade prerelease SDK & Bump for master
\ No newline at end of file
diff --git a/pubspec.yaml b/pubspec.yaml
index e600b104..133a3358 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,12 +1,12 @@
 name: flutter_quill
 description: One client and affiliated collaborator of Flutter Quill is Bullet Journal App.
-version: 0.3.3
+version: 1.0.0-dev.1
 #author: bulletjournal
 homepage: https://bulletjournal.us/home/index.html
 repository: https://github.com/singerdmx/flutter-quill.git
 
 environment:
-  sdk: ">=2.7.0 <3.0.0"
+  sdk: ">=2.12.0-29.7.beta <3.0.0"
   flutter: ">=1.17.0 <2.0.0"
 
 dependencies: