diff --git a/package.json b/package.json
index 3340ad0f..4dfb3f5c 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
     "clusterize.js": "^0.18.0",
     "codemirror": "^5.35.0",
     "commander": "^2.13.0",
+    "deepmerge": "^2.1.0",
     "eslint": "^4.19.1",
     "express": "^4.16.2",
     "flatpickr": "^4.3.2",
diff --git a/yarn.lock b/yarn.lock
index bece6004..a6aac571 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -872,6 +872,10 @@ deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
 
+deepmerge@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-2.1.0.tgz#511a54fff405fc346f0240bb270a3e9533a31102"
+
 defined@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/defined/-/defined-1.0.0.tgz#c98d9bcef75674188e110969151199e39b1fa693"
@@ -1412,6 +1416,7 @@ frappejs@../frappejs:
     puppeteer "^1.2.0"
     rollup "^0.55.1"
     rollup-plugin-commonjs "^8.3.0"
+    rollup-plugin-html "^0.2.1"
     rollup-plugin-json "^2.3.0"
     rollup-plugin-node-resolve "^3.0.2"
     rollup-plugin-postcss "^1.2.7"