diff --git a/client/package.json b/client/package.json
index b9ca37401..be805cec6 100644
--- a/client/package.json
+++ b/client/package.json
@@ -8,6 +8,7 @@
   "main": "index.js",
   "dependencies": {
     "@babel/polyfill": "^7.8.7",
+    "acorn": "^7.1.1",
     "babel-plugin-lodash": "3.3.4",
     "classnames": "2.2.6",
     "d3-array": "2.3.1",
diff --git a/client/yarn.lock b/client/yarn.lock
index e7f649a44..eb173aa51 100644
--- a/client/yarn.lock
+++ b/client/yarn.lock
@@ -1323,9 +1323,10 @@ acorn@^6.0.1, acorn@^6.1.1, acorn@^6.2.1:
   version "6.3.0"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.3.0.tgz#0087509119ffa4fc0a0041d1e93a417e68cb856e"
 
-acorn@^7.1.0:
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.1.0.tgz#949d36f2c292535da602283586c2477c57eb2d6c"
+acorn@^7.1.0, acorn@^7.1.1:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.1.1.tgz#e35668de0b402f359de515c5482a1ab9f89a69bf"
+  integrity sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg==
 
 add-dom-event-listener@1.x:
   version "1.0.2"