diff --git a/study/src/main/java/cache/com/example/GreetingController.java b/study/src/main/java/cache/com/example/GreetingController.java
index 978eefdc34..c0053cda42 100644
--- a/study/src/main/java/cache/com/example/GreetingController.java
+++ b/study/src/main/java/cache/com/example/GreetingController.java
@@ -5,7 +5,7 @@
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
 
-import javax.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpServletResponse;
 
 @Controller
 public class GreetingController {
diff --git a/study/src/main/java/cache/com/example/version/ResourceVersion.java b/study/src/main/java/cache/com/example/version/ResourceVersion.java
index 7049b3d82a..27a2f22813 100644
--- a/study/src/main/java/cache/com/example/version/ResourceVersion.java
+++ b/study/src/main/java/cache/com/example/version/ResourceVersion.java
@@ -2,7 +2,7 @@
 
 import org.springframework.stereotype.Component;
 
-import javax.annotation.PostConstruct;
+import jakarta.annotation.PostConstruct;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;