diff --git a/api/requirements.txt b/api/requirements.txt
index 3b19c65..ab690db 100644
--- a/api/requirements.txt
+++ b/api/requirements.txt
@@ -1,4 +1,4 @@
-arrow==0.14.5
+arrow==0.15.1
 asn1crypto==0.24.0
 attrs==17.4.0
 Automat==0.6.0