diff --git a/plugins/gradle/example-client/build.gradle b/plugins/gradle/example-client/build.gradle
index 9a68d955e432d793e9a5b673a5decd5b40abd571..ea634afd1414e7a992d6cf652770e2110c056466 100644
--- a/plugins/gradle/example-client/build.gradle
+++ b/plugins/gradle/example-client/build.gradle
@@ -18,7 +18,7 @@ dependencies {
 
     implementation "com.graphql-java-kickstart:graphql-spring-boot-starter:11.0.0"
     implementation "com.graphql-java-kickstart:graphiql-spring-boot-starter:11.1.0"
-    implementation "com.graphql-java:graphql-java-extended-scalars:16.0.1"
+    implementation "com.graphql-java:graphql-java-extended-scalars:20.0"
 
     // use the latest available version:
     // https://search.maven.org/artifact/io.github.kobylynskyi/graphql-java-codegen