diff --git a/bower.json b/bower.json
index 5a38fa5..3674de7 100644
--- a/bower.json
+++ b/bower.json
@@ -10,14 +10,14 @@
     "url": "git://github.com/ethul/purescript-freeap.git"
   },
   "dependencies": {
-    "purescript-exists": "^2.0.0",
-    "purescript-const": "^2.0.0"
+    "purescript-exists": "^3.0.0",
+    "purescript-const": "^3.0.0"
   },
   "devDependencies": {
-    "purescript-either": "^2.0.0",
-    "purescript-integers": "^2.0.0",
-    "purescript-generics": "^3.1.0",
-    "purescript-console": "^2.0.0",
-    "purescript-exceptions": "^2.0.0"
+    "purescript-either": "^3.0.0",
+    "purescript-integers": "^3.0.0",
+    "purescript-generics": "^4.0.0",
+    "purescript-console": "^3.0.0",
+    "purescript-exceptions": "^3.0.0"
   }
 }
diff --git a/test/Test/Main.purs b/test/Test/Main.purs
index b7e7daa..584a1da 100644
--- a/test/Test/Main.purs
+++ b/test/Test/Main.purs
@@ -1,6 +1,6 @@
 module Test.Main where
 
-import Prelude (Unit, bind)
+import Prelude (Unit, bind, discard)
 
 import Control.Monad.Eff (Eff)
 import Control.Monad.Eff.Console (CONSOLE, log, logShow)