diff --git a/setup.py b/setup.py
index fe0741a..6552454 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,7 @@ setup(name='paramecio2',
       url='https://bitbucket.org/paramecio/paramecio2fm/',
       packages=['paramecio2'],
       include_package_data=True,
-      install_requires=['flask', 'pymysql', 'sqlalchemy', 'colorama', 'python-slugify', 'mako', 'pillow'],
+      install_requires=['flask', 'pymysql', 'sqlalchemy', 'colorama', 'python-slugify', 'mako', 'pillow', 'arrow'],
       entry_points={'console_scripts': [
         'paramecio2 = paramecio2.console:start', 'paramecio2db = paramecio2.libraries.db.dbadmin:start',
       ]},