diff --git a/requirements.txt b/requirements.txt
index ee0a14d..f9c4224 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 Flask==1.0.2
 Requests==2.21.0
-arrow==0.13.1
+arrow==0.15.1
 requests-cache==0.4.13
 gunicorn