diff --git a/package.json b/package.json
index acb72d20..b0798f21 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gmod/cram",
-  "version": "4.0.3",
+  "version": "4.0.4",
   "description": "read CRAM files with pure Javascript",
   "license": "MIT",
   "repository": "GMOD/cram-js",