diff --git a/CHANGELOG.md b/CHANGELOG.md
index e125e5033b62..04bd2ee7d95d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## 2019.6.1 (9 July 2019)
+
+### Fixes
+
+1. Fixes to A/B testing.
+   ([#6400](https://github.com/microsoft/vscode-python/issues/6400))
+
 ## 2019.6.0 (25 June 2019)
 
 ### Enhancements
diff --git a/package-lock.json b/package-lock.json
index feac52a1ec3c..169ef5a4d52a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
     "name": "python",
-    "version": "2019.6.0",
+    "version": "2019.6.1",
     "lockfileVersion": 1,
     "requires": true,
     "dependencies": {
diff --git a/package.json b/package.json
index 70eaee5a3052..1f4dd24fcdb7 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Linting, Debugging (multi-threaded, remote), Intellisense, code formatting, refactoring, unit tests, snippets, and more.",
-    "version": "2019.6.0",
+    "version": "2019.6.1",
     "languageServerVersion": "0.2.82",
     "publisher": "ms-python",
     "author": {