diff --git a/Dockerfile b/Dockerfile
index 65867dd..028b285 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,3 @@
-FROM docker.elastic.co/elasticsearch/elasticsearch:7.17.9-amd64
+FROM docker.elastic.co/elasticsearch/elasticsearch:9.0.3-amd64
 RUN bin/elasticsearch-plugin install analysis-kuromoji
 RUN bin/elasticsearch-plugin install analysis-icu