diff --git a/requirements-nover.txt b/requirements-nover.txt
index 2f8d2a58d..a73a6768d 100644
--- a/requirements-nover.txt
+++ b/requirements-nover.txt
@@ -15,7 +15,7 @@ gevent
 mixpanel
 beautifulsoup4
 marisa-trie
-apscheduler
+APScheduler==3.0.5
 xhtml2pdf
 redis
 hiredis