diff --git a/moodtracker/requirements.txt b/moodtracker/requirements.txt
old mode 100755
new mode 100644
index 203bdd1..6774f98
--- a/moodtracker/requirements.txt
+++ b/moodtracker/requirements.txt
@@ -2,7 +2,7 @@ amqp==2.2.2
 argh==0.26.2
 asn1crypto==0.23.0
 billiard==3.5.0.3
-celery==4.1.0
+celery==5.2.2
 certifi==2017.7.27.1
 cffi==1.11.2
 chardet==3.0.4