diff --git a/orao.py b/orao.py
index eb09c45..4db5df6 100755
--- a/orao.py
+++ b/orao.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python2
+#!/usr/bin/python3
 # -*- coding: utf8 -*-
 
 import pygame, numpy, sys, datetime
diff --git a/orao/cpu.py b/orao/cpu.py
index b0db759..ee7b7b0 100755
--- a/orao/cpu.py
+++ b/orao/cpu.py
@@ -136,7 +136,9 @@ class CPU(object):
         self.sp = (self.sp + 1) & 0xFF
         return self.get_byte(256 + self.sp)
 
-    def stack_push_word(self, val): map(self.stack_push, [(val >> 8) & 0xFF, val & 0xFF])
+    def stack_push_word(self, val):
+        self.stack_push((val >> 8) & 0xFF)
+        self.stack_push(val & 0xFF)
 
     def stack_pop_word(self): return self.stack_pop() + (self.stack_pop() << 8)
     ###########################################################################
diff --git a/orao/keyboard.py b/orao/keyboard.py
index efc1fa2..3fb1817 100644
--- a/orao/keyboard.py
+++ b/orao/keyboard.py
@@ -20,7 +20,7 @@ _kbd = {
 
 def listener(event, cpu):
 	if event.type in [pygame.KEYDOWN, pygame.KEYUP]:
-		for address, keycodes in _kbd.iteritems():
-			keys = map(pygame.key.get_pressed().__getitem__, keycodes)
+		for address, keycodes in _kbd.items():
+			keys = list(map(pygame.key.get_pressed().__getitem__, keycodes))
 			cpu.memory[address] = ~numpy.dot(keys, [16, 32, 64, 128][:len(keys)]) & 0xFF
 
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..0689d7e
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,3 @@
+numpy==1.26.1
+pygame==2.5.2
+Wave==0.0.2