diff --git a/setup.py b/setup.py
index 5b3efa8..d7e8181 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@ setup(
     description='A forum scraping and migration tool.',
     author='Adrian Malacoda',
     packages=['tge', 'tge.scrapers'],
-    install_requires=['pyquery', 'python-dateutil'],
+    install_requires=['pyquery', 'python-dateutil', 'retrying'],
     entry_points={
         'console_scripts': [
             'tge = tge:main'