diff --git a/package.json b/package.json
index 219a0ad..cb49328 100644
--- a/package.json
+++ b/package.json
@@ -39,6 +39,7 @@
   "dependencies": {
     "axios": "^0.17.1",
     "gatsby-node-helpers": "^0.1.3",
+    "gatsby-source-filesystem": "^1.5.39",
     "lodash": "^4.17.4"
   },
   "devDependencies": {
@@ -47,8 +48,8 @@
     "babel-plugin-transform-object-rest-spread": "^6.23.0",
     "babel-plugin-transform-runtime": "^6.23.0",
     "babel-preset-env": "^1.6.0",
-    "prettier": "^1.5.3",
-    "pre-commit": "^1.2.2"
+    "pre-commit": "^1.2.2",
+    "prettier": "^1.5.3"
   },
   "pre-commit": [
     "format"