diff --git a/Dockerfile b/Dockerfile
index 34d929c..1f1a241 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,10 @@
 FROM openjdk:21
+
+RUN microdnf install -y tzdata
+ENV TZ=Asia/Seoul
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+
 ARG JAR_FILE=build/libs/earlybird-server.jar
 COPY ${JAR_FILE} app.jar
-RUN sudo ln -snf /usr/share/zoneinfo/Asia/Seoul /etc/localtime
 EXPOSE 8080
 ENTRYPOINT ["java", "-jar", "/app.jar"]
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