diff --git a/requirements.txt b/requirements.txt
index c6578b3..8602928 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ Send2Trash==1.5.0
 pytz==2017.2
 SQLAlchemy==1.3.1
 watchdog==0.9.0
-redis==3.2.1
+redis==4.5.3
 PyPDF2==1.26.0
 beautifulsoup4==4.8.1
 django_haystack==2.8.1