diff --git a/docker-compose.yml b/docker-compose.yml
index 7ef558f..b54411d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,7 +4,7 @@ services:
   mdbook:
     container_name: test-mdbook
     # https://hub.docker.com/r/peaceiris/mdbook/tags
-    image: peaceiris/mdbook:v0.4.21-rust
+    image: peaceiris/mdbook:v0.4.30-rust
 #    stdin_open: true
 #    tty: true
     ports: