diff --git a/build.gradle b/build.gradle
index 0c8ff08..7aa6df6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -53,7 +53,7 @@ dependencies {
     testImplementation("org.apache.tomcat.embed:tomcat-embed-core:9.0.30") {
         exclude group: "tomcat-annotations-api", module: "org.apache.tomcat"
     }
-    testImplementation "org.apache.tomcat.embed:tomcat-embed-el:9.0.30"
+    testImplementation "org.apache.tomcat.embed:tomcat-embed-el:9.0.31"
     testImplementation "org.apache.tomcat.embed:tomcat-embed-websocket:9.0.30"
 
     // JUnit