diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ffc4c6..a257e29 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# [4.0.0](https://github.com/GMOD/bam-js/compare/v3.0.3...v4.0.0) (2024-11-12)
+
+
+
 ## [3.0.3](https://github.com/GMOD/bam-js/compare/v3.0.0...v3.0.3) (2024-11-11)
 
 
diff --git a/package.json b/package.json
index f1a41d8..8efa0e3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gmod/bam",
-  "version": "3.0.3",
+  "version": "4.0.0",
   "description": "Parser for BAM and BAM index (bai) files",
   "license": "MIT",
   "repository": "GMOD/bam-js",