diff --git a/lazy_import/VERSION b/lazy_import/VERSION
index 3988334..1f16133 100644
--- a/lazy_import/VERSION
+++ b/lazy_import/VERSION
@@ -1 +1 @@
-0.2.3-dev0
+0.2.3-dev1
diff --git a/setup.py b/setup.py
index b2f1835..2f84344 100644
--- a/setup.py
+++ b/setup.py
@@ -43,5 +43,6 @@
       test_suite='lazy_import.test_lazy',
       tests_require=tests_require,
       extras_require={'test': tests_require},
-      package_data={'lazy_import': ['VERSION']}
+      package_data={'lazy_import': ['VERSION']},
+      python_requires=">=2.7",
       )