diff --git a/requirements.txt b/requirements.txt
index f827151..ad2a52a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,5 @@
 aiofiles==0.4.0
+APScheduler==3.8.1
 arrow==0.15.2
 blinker==1.4
 certifi==2019.9.11