diff --git a/.prettierrc b/.prettierrc
index 3384551aea5..5e2863a11f6 100644
--- a/.prettierrc
+++ b/.prettierrc
@@ -1,13 +1,5 @@
 {
   "printWidth": 100,
   "singleQuote": true,
-  "trailingComma": "es5",
-  "overrides": [
-    {
-      "files": ["**/app/**/*", "**/spec/**/*"],
-      "options": {
-        "trailingComma": "all"
-      }
-    }
-  ]
+  "trailingComma": "all"
 }
diff --git a/config/karma.config.js b/config/karma.config.js
index 1012a713eb6..23eae40dceb 100644
--- a/config/karma.config.js
+++ b/config/karma.config.js
@@ -26,7 +26,7 @@ webpackConfig.devtool = 'cheap-inline-source-map';
 webpackConfig.plugins.push(
   new webpack.DefinePlugin({
     'process.env.BABEL_ENV': JSON.stringify(process.env.BABEL_ENV || process.env.NODE_ENV || null),
-  })
+  }),
 );
 
 const specFilters = argumentsParser
@@ -37,7 +37,7 @@ const specFilters = argumentsParser
       memo.push(filter, filter.replace(/\/?$/, '/**/*.js'));
       return memo;
     },
-    []
+    [],
   )
   .parse(process.argv).filterSpec;
 
@@ -51,7 +51,7 @@ if (specFilters.length) {
         root: ROOT_PATH,
         matchBase: true,
       })
-      .filter(path => path.endsWith('spec.js'))
+      .filter(path => path.endsWith('spec.js')),
   );
 
   // flatten
@@ -78,8 +78,8 @@ if (specFilters.length) {
     new webpack.ContextReplacementPlugin(
       /spec[\\\/]javascripts$/,
       path.join(ROOT_PATH, 'spec/javascripts'),
-      newContext
-    )
+      newContext,
+    ),
   );
 }
 
diff --git a/config/webpack.config.js b/config/webpack.config.js
index 64e6ec49219..11970b620bc 100644
--- a/config/webpack.config.js
+++ b/config/webpack.config.js
@@ -251,7 +251,7 @@ module.exports = {
       } else {
         resource.request = path.join(
           ROOT_PATH,
-          'app/assets/javascripts/vue_shared/components/empty_component.js'
+          'app/assets/javascripts/vue_shared/components/empty_component.js',
         );
       }
     }),
@@ -267,7 +267,7 @@ module.exports = {
           const missingDeps = Array.from(compilation.missingDependencies);
           const nodeModulesPath = path.join(ROOT_PATH, 'node_modules');
           const hasMissingNodeModules = missingDeps.some(
-            file => file.indexOf(nodeModulesPath) !== -1
+            file => file.indexOf(nodeModulesPath) !== -1,
           );
 
           // watch for changes to missing node_modules
@@ -278,7 +278,7 @@ module.exports = {
 
           // report our auto-generated bundle count
           console.log(
-            `${autoEntriesCount} entries from '/pages' automatically added to webpack output.`
+            `${autoEntriesCount} entries from '/pages' automatically added to webpack output.`,
           );
 
           callback();
diff --git a/package.json b/package.json
index 7cdb11dca14..632a1b90289 100644
--- a/package.json
+++ b/package.json
@@ -169,7 +169,7 @@
     "nodemon": "^1.18.9",
     "pixelmatch": "^4.0.2",
     "postcss": "^7.0.14",
-    "prettier": "1.16.1",
+    "prettier": "1.16.4",
     "stylelint": "^9.10.1",
     "stylelint-config-recommended": "^2.1.0",
     "stylelint-scss": "^3.5.3",
diff --git a/scripts/frontend/postinstall.js b/scripts/frontend/postinstall.js
index 682039a41b3..94977e459e3 100644
--- a/scripts/frontend/postinstall.js
+++ b/scripts/frontend/postinstall.js
@@ -13,7 +13,7 @@ if (process.platform === 'darwin') {
         ensure that it is supported by the fsevents library.
 
         You can try installing again with \`${chalk.cyan('yarn install --force')}\`
-      `)
+      `),
     );
     process.exit(1);
   }
diff --git a/scripts/frontend/prettier.js b/scripts/frontend/prettier.js
index ffb09ea9779..bf0e98da139 100644
--- a/scripts/frontend/prettier.js
+++ b/scripts/frontend/prettier.js
@@ -32,7 +32,7 @@ let globDir = process.argv[3] || '';
 if (globDir && globDir.charAt(globDir.length - 1) !== '/') globDir += '/';
 
 console.log(
-  `Loading all ${allFiles ? '' : 'staged '}files ${globDir ? `within ${globDir} ` : ''}...`
+  `Loading all ${allFiles ? '' : 'staged '}files ${globDir ? `within ${globDir} ` : ''}...`,
 );
 
 const globPatterns = matchExtensions.map(ext => `${globDir}**/*.${ext}`);
@@ -105,7 +105,7 @@ Promise.all(matchedFiles.map(checkFileWithPrettierConfig))
   .then(() => {
     const failAction = shouldSave ? 'fixed' : 'failed';
     console.log(
-      `\nSummary:\n  ${matchedCount} files processed (${passedCount} passed, ${failedCount} ${failAction}, ${ignoredCount} ignored)\n`
+      `\nSummary:\n  ${matchedCount} files processed (${passedCount} passed, ${failedCount} ${failAction}, ${ignoredCount} ignored)\n`,
     );
 
     if (didWarn) process.exit(1);
diff --git a/yarn.lock b/yarn.lock
index 1ac6b322469..3cb0fea64fc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8086,16 +8086,16 @@ prepend-http@^2.0.0:
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-2.0.0.tgz#e92434bfa5ea8c19f41cdfd401d741a3c819d897"
   integrity sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc=
 
-prettier@1.16.1:
-  version "1.16.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.16.1.tgz#534c2c9d7853f8845e5e078384e71973bd74089f"
-  integrity sha512-XXUITwIkGb3CPJ2hforHah/zTINRyie5006Jd2HKy2qz7snEJXl0KLfsJZW/wst9g6R2rFvqba3VpNYdu1hDcA==
-
 prettier@1.16.3:
   version "1.16.3"
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.16.3.tgz#8c62168453badef702f34b45b6ee899574a6a65d"
   integrity sha512-kn/GU6SMRYPxUakNXhpP0EedT/KmaPzr0H5lIsDogrykbaxOpOfAFfk5XA7DZrJyMAv1wlMV3CPcZruGXVVUZw==
 
+prettier@1.16.4:
+  version "1.16.4"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.16.4.tgz#73e37e73e018ad2db9c76742e2647e21790c9717"
+  integrity sha512-ZzWuos7TI5CKUeQAtFd6Zhm2s6EpAD/ZLApIhsF9pRvRtM1RFo61dM/4MSRUA0SuLugA/zgrZD8m0BaY46Og7g==
+
 pretty-format@^24.0.0:
   version "24.0.0"
   resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-24.0.0.tgz#cb6599fd73ac088e37ed682f61291e4678f48591"