diff --git a/bower.json b/bower.json
index 716b479..7c26de0 100644
--- a/bower.json
+++ b/bower.json
@@ -21,7 +21,8 @@
     "purescript-js-date": "^6.0.0",
     "purescript-foreign-object": "^1.0.0",
     "purescript-foreign-generic": "^7.0.0",
-    "purescript-tuples": "^5.0.0"
+    "purescript-tuples": "^5.0.0",
+    "purescript-nullable": "^4.1.0"
   },
   "repository": {
     "type": "git",