diff --git a/.gitignore b/.gitignore
index 1eda48c..cd71c5c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,6 +5,9 @@ admin/
 cache/
 !/cache/.htaccess
 
+# Heroku specific entries
+vendor/
+.env
 
 # Created by https://www.gitignore.io/api/osx,linux,windows,phpstorm,sublimetext
 
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..d95217d
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,6 @@
+{
+  "require" : {
+	"php" : "^5.5",
+	"ext-mbstring": "*"
+  }
+}