diff --git a/build.gradle b/build.gradle
index ea31b80..01cb27b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -41,7 +41,7 @@ repositories {
 }
 
 dependencies {
-    implementation "com.graphql-java:graphql-java:21.3"
+    implementation "com.graphql-java:graphql-java:21.4"
 
     testImplementation "org.spockframework:spock-core:2.3-groovy-3.0"
     testImplementation "org.codehaus.groovy:groovy:3.0.20"