diff --git a/CHANGELOG.md b/CHANGELOG.md
index c7b6413b4c..dd91cbe177 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+# [4.0.0-alpha.20](https://github.com/contentful/ui-extensions-sdk/compare/v4.0.0-alpha.19...v4.0.0-alpha.20) (2021-07-02)
+
+
+### Bug Fixes
+
+* make adapter optional ([#831](https://github.com/contentful/ui-extensions-sdk/issues/831)) ([a737f82](https://github.com/contentful/ui-extensions-sdk/commit/a737f82aeec965e380dbc5aeb06fd36969306f90))
+
 # [4.0.0-alpha.19](https://github.com/contentful/ui-extensions-sdk/compare/v4.0.0-alpha.18...v4.0.0-alpha.19) (2021-07-01)
 
 
diff --git a/package-lock.json b/package-lock.json
index 971ba66ce4..f03dd251e4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "contentful-ui-extensions-sdk",
-  "version": "4.0.0-alpha.19",
+  "version": "4.0.0-alpha.20",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index ac04ac2e8e..9192ab8607 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "contentful-ui-extensions-sdk",
   "description": "SDK to develop custom UI Extension for the Contentful Web App",
-  "version": "4.0.0-alpha.19",
+  "version": "4.0.0-alpha.20",
   "author": "Contentful GmbH",
   "license": "MIT",
   "repository": {