diff --git a/requirements.txt b/requirements.txt
index 2f5bc12..e75f2d4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-arrow==0.13.1
+arrow==0.15.1
 Babel==2.6.0
 cairocffi==1.0.2
 CairoSVG==2.3.0