diff --git a/JSD1808/JSD1808/AJAX/pom.xml b/JSD1808/JSD1808/AJAX/pom.xml
index 16b60b3..ba09074 100644
--- a/JSD1808/JSD1808/AJAX/pom.xml
+++ b/JSD1808/JSD1808/AJAX/pom.xml
@@ -48,7 +48,7 @@
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>4.9</version>
+			<version>4.13.1</version>
 		</dependency>
 		<!--8、Jackson-databind -->
 		<dependency>