diff --git a/elasticsearch-a1/Dockerfile b/elasticsearch-a1/Dockerfile
index f121a27..725c04a 100644
--- a/elasticsearch-a1/Dockerfile
+++ b/elasticsearch-a1/Dockerfile
@@ -1,8 +1,6 @@
-FROM elasticsearch:8.18.2
+FROM elasticsearch:9.2.3
 
 RUN bin/elasticsearch-plugin install --batch \
         analysis-icu \
         analysis-kuromoji \
-        ingest-attachment \
-        repository-s3 \
-        https://get.infini.cloud/elasticsearch/analysis-ik/8.18.2
+        https://get.infini.cloud/elasticsearch/analysis-ik/9.2.3
diff --git a/elasticsearch-a1/version.txt b/elasticsearch-a1/version.txt
deleted file mode 100644
index 2ffa932..0000000
--- a/elasticsearch-a1/version.txt
+++ /dev/null
@@ -1 +0,0 @@
-8.18.2-20260106-r1