diff --git a/CHANGELOG.md b/CHANGELOG.md
index a003e27f..5ff7a2a8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 1.2.1
+* Disable caching downloaded sourcemaps, hoping to fix [#247](https://github.com/Microsoft/vscode-chrome-debug/issues/247)
+
 ## 1.2.0
 * Change the way that sourcemaps are downloaded, hoping to fix [#251](https://github.com/Microsoft/vscode-chrome-debug/issues/251)
 * Fix breakpoints being moved around after refreshing the page - [#250](https://github.com/Microsoft/vscode-chrome-debug/issues/250)
diff --git a/package.json b/package.json
index 64498fb5..1fafafc8 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "debugger-for-chrome",
   "displayName": "Debugger for Chrome",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "icon": "images/icon.png",
   "description": "Debug your JavaScript code in the Chrome browser, or any other target that supports the Chrome Debugger protocol.",
   "author": {
@@ -21,7 +21,7 @@
   ],
   "license": "SEE LICENSE IN LICENSE.txt",
   "dependencies": {
-    "vscode-chrome-debug-core": "2.0.3",
+    "vscode-chrome-debug-core": "2.0.4",
     "vscode-debugadapter": "^1.12.0",
     "vscode-debugprotocol": "^1.12.0"
   },