diff --git a/package-lock.json b/package-lock.json
index 6a18566..1d3e97f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -52,9 +52,9 @@
       }
     },
     "@sourcegraph/prettierrc": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/@sourcegraph/prettierrc/-/prettierrc-2.2.0.tgz",
-      "integrity": "sha512-kRdHxdAppxYnN7qAQjNTyuG05pjYHFtEUquZauXVXBeaGB4sye3uSkb8wgi34jeaUHG/gWp2f5hQgCCBMizjjA==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/@sourcegraph/prettierrc/-/prettierrc-3.0.1.tgz",
+      "integrity": "sha512-Xyfsk2zLbtJXjgzPC5Q91AdoZ9YECB7Z5pyUCoYb36zqClBRkN2F/VoT+04pLqBf9xsr9uKfJoaf/WGGngLlVg==",
       "dev": true
     },
     "@sourcegraph/tsconfig": {
diff --git a/package.json b/package.json
index 7632bfb..87ed251 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "tagged-template-noop": "^2.1.0"
   },
   "devDependencies": {
-    "@sourcegraph/prettierrc": "^2.2.0",
+    "@sourcegraph/prettierrc": "^3.0.0",
     "@sourcegraph/tsconfig": "^3.0.0",
     "@sourcegraph/tslint-config": "^12.3.1",
     "@types/express": "4.16.1",