diff --git a/extensions/cornerstone/CHANGELOG.md b/extensions/cornerstone/CHANGELOG.md
index 94f055828..2b135bd0f 100644
--- a/extensions/cornerstone/CHANGELOG.md
+++ b/extensions/cornerstone/CHANGELOG.md
@@ -3,6 +3,17 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [2.1.1](https://github.com/OHIF/Viewers/compare/@ohif/extension-cornerstone@2.1.0...@ohif/extension-cornerstone@2.1.1) (2019-12-16)
+
+
+### Bug Fixes
+
+* 🐛 add WwwcRegionTool to cornerstone tools initialization ([#1302](https://github.com/OHIF/Viewers/issues/1302)) ([d5bf728](https://github.com/OHIF/Viewers/commit/d5bf72851a32dff9fd3fc09332ea5250bc7e6114))
+
+
+
+
+
 # [2.1.0](https://github.com/OHIF/Viewers/compare/@ohif/extension-cornerstone@2.0.2...@ohif/extension-cornerstone@2.1.0) (2019-12-11)
 
 
diff --git a/extensions/cornerstone/package.json b/extensions/cornerstone/package.json
index 38d6f4356..a0ac3aacb 100644
--- a/extensions/cornerstone/package.json
+++ b/extensions/cornerstone/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ohif/extension-cornerstone",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "description": "OHIF extension for Cornerstone",
   "author": "OHIF",
   "license": "MIT",
diff --git a/platform/viewer/CHANGELOG.md b/platform/viewer/CHANGELOG.md
index 3efe43717..d193022c1 100644
--- a/platform/viewer/CHANGELOG.md
+++ b/platform/viewer/CHANGELOG.md
@@ -3,6 +3,14 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [3.1.11](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.1.10...@ohif/viewer@3.1.11) (2019-12-16)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
 ## [3.1.10](https://github.com/OHIF/Viewers/compare/@ohif/viewer@3.1.9...@ohif/viewer@3.1.10) (2019-12-16)
 
 **Note:** Version bump only for package @ohif/viewer
diff --git a/platform/viewer/package.json b/platform/viewer/package.json
index 50122b18e..504450ee2 100644
--- a/platform/viewer/package.json
+++ b/platform/viewer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ohif/viewer",
-  "version": "3.1.10",
+  "version": "3.1.11",
   "description": "OHIF Viewer",
   "author": "OHIF Contributors",
   "license": "MIT",
@@ -46,7 +46,7 @@
   "dependencies": {
     "@babel/runtime": "^7.5.5",
     "@ohif/core": "^2.1.1",
-    "@ohif/extension-cornerstone": "^2.1.0",
+    "@ohif/extension-cornerstone": "^2.1.1",
     "@ohif/extension-dicom-html": "^1.1.0",
     "@ohif/extension-dicom-microscopy": "^0.50.6",
     "@ohif/extension-dicom-pdf": "^1.0.1",