diff --git a/build.gradle b/build.gradle
index 0600468..1f76158 100644
--- a/build.gradle
+++ b/build.gradle
@@ -118,7 +118,7 @@ repositories {
 
 ext {
   log4JVersion = '2.25.3'
-  spring = '3.5.9'
+  spring = '3.5.13'
 }
 
 dependencies {