diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 000000000..ccbccc3dc
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+2.2.0
diff --git a/circle.yml b/circle.yml
index 50e593418..dceac0043 100644
--- a/circle.yml
+++ b/circle.yml
@@ -1,6 +1,8 @@
 dependencies:
     pre:
-        - gem install sass --version ">= 3.4"
+        - gem install sass --version "= 3.4"
+        - pip install s3cmd
+        - npm install -g browserify
         - npm install -g grunt-cli
 deployment:
     staging: