diff --git a/.java-version b/.java-version
new file mode 100644
index 0000000..98d9bcb
--- /dev/null
+++ b/.java-version
@@ -0,0 +1 @@
+17
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..7b016a8
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,3 @@
+{
+    "java.compile.nullAnalysis.mode": "automatic"
+}
\ No newline at end of file
diff --git a/data-center-business-controller/dockerfile b/data-center-business-controller/dockerfile
index 52a7fb0..48b7e47 100644
--- a/data-center-business-controller/dockerfile
+++ b/data-center-business-controller/dockerfile
@@ -1,7 +1,9 @@
     # FROM registry.ap-northeast-1.aliyuncs.com/southwave/jdk17-template:latest
 FROM amazoncorretto:17-alpine
 # 安装 fontconfig 和 DejaVu 字体 (这是一个通用且免费的字体包)
-RUN apk --no-cache add fontconfig ttf-dejavu
+RUN apk --no-cache update && \
+    apk --no-cache upgrade && \
+    apk --no-cache add fontconfig ttf-dejavu
 # FROM openjdk:17-jdk
 ENV TZ=Asia/Tokyo
 WORKDIR /home/data-center-business