diff --git a/requirements/base.txt b/requirements/base.txt
old mode 100755
new mode 100644
index 1120a9c..b24221c
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -1,6 +1,6 @@
 argon2-cffi==16.3.0
 awesome-slugify==1.6.5
-celery==4.1.0
+celery==5.2.2
 celery[redis]==4.1.0
 certifi==2017.7.27.1
 cffi==1.9.1