diff --git a/bower.json b/bower.json
index abbf247..66d1299 100644
--- a/bower.json
+++ b/bower.json
@@ -18,5 +18,8 @@
     "bower_components",
     "test",
     "tests"
-  ]
+  ],
+  "dependencies": {
+    "d3": "~3.3.9"
+  }
 }