diff --git a/setup.py b/setup.py
index c4aa206..a201cf0 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 README = open(os.path.join(here, 'README.rst')).read()
 
 requires = [
-    'arrow>=0.12.1,<1.3',
+    'arrow>=0.12.1,<1.4',
     'attrs>=17.4.0',
     'charset-normalizer<3',
     'docopt>=0.6.2',