diff --git a/pom.xml b/pom.xml
index abb0249..1bf4959 100644
--- a/pom.xml
+++ b/pom.xml
@@ -82,7 +82,7 @@
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-core</artifactId>
 			<!-- newer spring core jars are much bigger -->
-			<version>1.2.9</version>
+			<version>4.3.21.RELEASE</version>
 		</dependency>
 		<dependency>
 			<groupId>org.slf4j</groupId>