diff --git a/HISTORY.md b/HISTORY.md
index 60645f3..c5b341d 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,6 +1,10 @@
+0.1.31 (2015/11/09)
+===================
+- Support using `^` to override `baseUrl`.
+
 0.1.30 (2015/10/30)
 ===================
-- Bundle static asset on the fly with option `-a` or `--bundle-asset`
+- Bundle static asset on the fly with option `-a` or `--bundle-asset`.
 
 
 0.1.29 (2015/10/30)
diff --git a/package.json b/package.json
index 695ebe8..b8b1916 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "micromono",
-  "version": "0.1.30",
+  "version": "0.1.31",
   "description": "Monolithic micro-services framework",
   "main": "lib/index.js",
   "bin": {