diff --git a/game.py b/game.py
index 50f41fc..f90da29 100755
--- a/game.py
+++ b/game.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python
 
 from numpy import matrix
 import sys
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..24ce15a
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+numpy