diff --git a/redis-demo/docker-compose.yml b/redis-demo/docker-compose.yml
index 2ced6f6a..140eed2e 100644
--- a/redis-demo/docker-compose.yml
+++ b/redis-demo/docker-compose.yml
@@ -6,13 +6,13 @@ nginxplus:
   - "8080:8080"
 
 redis-master:
-  image: redis:3
+  image: redis:7
   container_name: redis-master
   ports:
   - "63791:6379"
 
 redis-slave1:
-  image: redis:3
+  image: redis:7
   command: redis-server --slaveof redis-master 6379
   container_name: redis-slave1
   links:
@@ -21,7 +21,7 @@ redis-slave1:
   - "63792:6379"
 
 redis-slave2:
-  image: redis:3
+  image: redis:7
   command: redis-server --slaveof redis-master 6379
   container_name: redis-slave2
   links:
diff --git a/redis-demo/sentinel/Dockerfile b/redis-demo/sentinel/Dockerfile
index 122d1df7..9838b107 100644
--- a/redis-demo/sentinel/Dockerfile
+++ b/redis-demo/sentinel/Dockerfile
@@ -1,4 +1,4 @@
-FROM redis:3
+FROM redis:7
 
 MAINTAINER Kunal Pariani <kunal.pariani@nginx.com>