diff --git a/build.gradle b/build.gradle
index 973594b..cb79618 100644
--- a/build.gradle
+++ b/build.gradle
@@ -206,7 +206,7 @@ dependencies {
 
     compileOnly 'org.eclipse.jdt.core.compiler:ecj:4.2.2'
 
-    runtime 'org.apache.tomcat:tomcat-jasper:7.0.42'
+    runtime 'org.apache.tomcat:tomcat-jasper:9.0.40'
 }
 
 repositories {