diff --git a/.travis.yml b/.travis.yml
index 78cde3d..98ef0d0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,13 @@ language: node_js
 dist: trusty
 sudo: required
 node_js: 6
+env:
+  - PATH=$HOME/purescript:$PATH
 install:
+  - TAG=$(wget -q -O - https://github.com/purescript/purescript/releases/latest --server-response --max-redirect 0 2>&1 | sed -n -e 's/.*Location:.*tag\///p')
+  - wget -O $HOME/purescript.tar.gz https://github.com/purescript/purescript/releases/download/$TAG/linux64.tar.gz
+  - tar -xvf $HOME/purescript.tar.gz -C $HOME/
+  - chmod a+x $HOME/purescript
   - npm install -g bower
   - npm install
   - bower install --production
diff --git a/bower.json b/bower.json
index 3c8721b..8ad79dc 100644
--- a/bower.json
+++ b/bower.json
@@ -12,6 +12,6 @@
     "url": "git://github.com/purescript-node/purescript-node-url.git"
   },
   "dependencies": {
-    "purescript-nullable": "#compiler/0.12"
+    "purescript-nullable": "^4.0.0"
   }
 }
diff --git a/package.json b/package.json
index 6dc2309..2e21753 100644
--- a/package.json
+++ b/package.json
@@ -7,10 +7,9 @@
   },
   "devDependencies": {
     "jscs": "^3.0.7",
-    "jshint": "^2.9.4",
-    "pulp": "^11.0.0",
-    "purescript": "^0.11.1",
-    "purescript-psa": "^0.5.0",
-    "rimraf": "^2.6.1"
+    "jshint": "^2.9.5",
+    "pulp": "^12.2.0",
+    "purescript-psa": "^0.6.0",
+    "rimraf": "^2.6.2"
   }
 }