diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..bed6d2d
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+setuptools~=60.2.0
+PyYAML~=6.0
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 158b43a..905748a 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 from setuptools import setup, find_packages
 
-execfile('yaml_cli/version.py')
+exec(open("yaml_cli/version.py").read())
 
 def params():
 	name = 'yaml_cli'  # This is the name of your PyPI-package.