diff --git a/Dockerfile b/Dockerfile
index a8900d4..dfd4176 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,7 +20,7 @@ COPY ./src ./src
 RUN ./gradlew war
 
 # 2. プロダクション用のコンテナ
-FROM tomcat:11.0.2-jdk21-temurin-noble
+FROM tomcat:11.0.6-jdk21-temurin-noble
 ARG PROJECT_NAME
 EXPOSE 8080