diff --git a/README.md b/README.md
index a1bd38a..4848f9a 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ US 2016.
 
 ## Getting Started
 
-1. Install kivy (via Anaconda or pip)
+1. Install kivy (via Anaconda or `pip install -r requirements.txt`)
 1. Run the game using: `python main.py`
 
 ## License
diff --git a/main.py b/main.py
index 517a89e..9f47a5a 100644
--- a/main.py
+++ b/main.py
@@ -19,7 +19,7 @@ class StrategyGame(FloatLayout):
         super(StrategyGame, self).__init__(**kwargs)
 
         number_of_regions = self.map_rows * self.map_cols
-        for region in xrange(0, number_of_regions):
+        for region in range(0, number_of_regions):
             row = region / self.map_cols
             col = region % self.map_cols
 
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..f5b68ee
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+Cython
+Kivy==1.9.1