diff --git a/pipi/pom.xml b/pipi/pom.xml
index 0ebb7f9..6a8f07a 100644
--- a/pipi/pom.xml
+++ b/pipi/pom.xml
@@ -71,7 +71,7 @@
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-expression</artifactId>
-			<version>4.2.0.RELEASE</version>
+			<version>5.2.21.RELEASE</version>
 		</dependency>
 
 		<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->