diff --git a/ChangeLog b/ChangeLog
index cd79863..53cbe6c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2018.05.30, v1.4.0
+
+feature:
+- (api) improve file system for small files
+
+
 2018.04.15, v1.3.5
 
 fix:
diff --git a/package.json b/package.json
index 26b3fa5..e54a0b0 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "loop",
   "private": true,
-  "version": "1.3.5",
+  "version": "1.4.0",
   "description": "Create or resize file system of an image file to use as a loop device",
   "bin": "bin/loop.sh",
   "repository": {