diff --git a/pom.xml b/pom.xml
index 4492db9..c7d3927 100644
--- a/pom.xml
+++ b/pom.xml
@@ -92,7 +92,7 @@
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-expression</artifactId>
-			<version>4.3.17.RELEASE</version>
+			<version>5.2.21.RELEASE</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework</groupId>