diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1b33ab5..72a936f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [unreleased]
+
+## [0.6.7] - 2023-05-05
+- Add `IPriceFeedDispatcher.decimals` back for backward compatible.
+
 ## [0.6.6] - 2023-05-05
 - Add `PriceFeedDispatcher.getPrice` for backward compatible.
 
diff --git a/package-lock.json b/package-lock.json
index cad743e..0aadb0c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@perp/perp-oracle-contract",
-  "version": "0.6.6",
+  "version": "0.6.7",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@perp/perp-oracle-contract",
-      "version": "0.6.6",
+      "version": "0.6.7",
       "license": "GPL-3.0-or-later",
       "devDependencies": {
         "@chainlink/contracts": "0.1.7",
diff --git a/package.json b/package.json
index 9adaf04..3c952ee 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@perp/perp-oracle-contract",
-  "version": "0.6.6",
+  "version": "0.6.7",
   "description": "Perpetual Protocol Curie (v2) oracle contracts - v0.5.0 is not an audited version",
   "license": "GPL-3.0-or-later",
   "author": {