diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1cfa95e..abde2d1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,16 @@
+# 2.0.0
+
+### Fix
+
+* Compatibility with js platform.
+
+### Breaking
+
+* `ULID`'s fields type change from `int` to `Int64`
+    * `mostSignificantBits`
+    * `leastSignificantBits`
+    * `timestamp`
+
 # 1.1.1
 
 ### Fix
diff --git a/pubspec.yaml b/pubspec.yaml
index 7cd073b..da7e7f5 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: ulid4d
 description: Universally Unique Lexicographically Sortable Identifier for Dart
-version: 1.1.1
+version: 2.0.0
 homepage: https://github.com/Aallam/ulid4d
 repository: https://github.com/Aallam/ulid4d
 issue_tracker: https://github.com/Aallam/ulid4d/issues