diff --git a/requirements.txt b/requirements.txt
index 56f817e..29da3a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ attrs==18.2.0
 enum34==1.1.6; python_version<"3"
 nose==1.3.7
 hypothesis==3.86.4
-redis==3.2.1
+redis==4.3.6
 lupa==1.8
 future==0.17.1
 sortedcontainers==2.1.0