diff --git a/tests/fixtures/robots.txt b/tests/fixtures/robots.txt
index 5a8c263b3..94244084f 100644
--- a/tests/fixtures/robots.txt
+++ b/tests/fixtures/robots.txt
@@ -1,4 +1,4 @@
 User-agent: bingbot
-Disallow: /manifest.json
+Disallow: /manifest.webmanifest
 
 User-agent: *
diff --git a/ui/public/index.html b/ui/public/index.html
index 47afc9a2c..02675cbf2 100644
--- a/ui/public/index.html
+++ b/ui/public/index.html
@@ -16,10 +16,10 @@
 
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <!--
-      manifest.json provides metadata used when your web app is installed on a
+      manifest.webmanifest provides metadata used when your web app is installed on a
       user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
     -->
-    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.webmanifest" />
     <!--
       Notice the use of %PUBLIC_URL% in the tags above.
       It will be replaced with the URL of the `public` folder during the build.
diff --git a/ui/public/manifest.json b/ui/public/manifest.webmanifest
similarity index 100%
rename from ui/public/manifest.json
rename to ui/public/manifest.webmanifest
diff --git a/ui/public/robots.txt b/ui/public/robots.txt
index 5a8c263b3..94244084f 100644
--- a/ui/public/robots.txt
+++ b/ui/public/robots.txt
@@ -1,4 +1,4 @@
 User-agent: bingbot
-Disallow: /manifest.json
+Disallow: /manifest.webmanifest
 
 User-agent: *