diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7a2297875d..7c026c4a26 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -97,6 +97,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
          - `@babel/runtime@7.6.3`
          - `core-js@3.3.6`
 -  `component`: Bumps [`adaptivecards@1.2.3`](https://npmjs.com/package/adaptivecards), by [@corinagum](https://github.com/corinagum) in PR [#2523](https://github.com/microsoft/BotFramework-WebChat/pull/2532)
+-  Bumps Chrome in Docker to 78.0.3904.70, by [@spyip](https://github.com/spyip) in PR [#2545](https://github.com/microsoft/BotFramework-WebChat/pull/2545)
 
 ## [4.6.0] - 2019-10-31
 
diff --git a/Dockerfile-selenium b/Dockerfile-selenium
index 9d03ac44d3..968ed6ecc4 100644
--- a/Dockerfile-selenium
+++ b/Dockerfile-selenium
@@ -1,6 +1,6 @@
 # https://github.com/SeleniumHQ/docker-selenium
 # https://hub.docker.com/r/selenium/standalone-chrome/tags/
 
-FROM selenium/standalone-chrome:3.141.59-radium
+FROM selenium/standalone-chrome:3.141.59-xenon
 
 ADD __tests__/setup/local ~/Downloads
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diff --git a/__tests__/__image_snapshots__/chrome-docker/video-js-video-1-snap.png b/__tests__/__image_snapshots__/chrome-docker/video-js-video-1-snap.png
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diff --git a/__tests__/setup/pageObjects/playMediaToCompletion.js b/__tests__/setup/pageObjects/playMediaToCompletion.js
index 17584330e5..b64448d1e6 100644
--- a/__tests__/setup/pageObjects/playMediaToCompletion.js
+++ b/__tests__/setup/pageObjects/playMediaToCompletion.js
@@ -1,13 +1,13 @@
 import executePromiseScript from './executePromiseScript';
 
-export default async function pingBot(driver, mediaElement) {
+export default async function playMediaToCompletion(driver, mediaElement) {
   await executePromiseScript(
     driver,
     mediaElement =>
       new Promise(resolve => {
         mediaElement.loop = false;
         mediaElement.play();
-        mediaElement.onended = resolve;
+        mediaElement.onended = () => resolve();
       }),
     mediaElement
   );