diff --git a/samples/lambda-kotlin-request-router-sample-proto/build.gradle.kts b/samples/lambda-kotlin-request-router-sample-proto/build.gradle.kts
index 707e5c4..37dccf4 100644
--- a/samples/lambda-kotlin-request-router-sample-proto/build.gradle.kts
+++ b/samples/lambda-kotlin-request-router-sample-proto/build.gradle.kts
@@ -41,7 +41,7 @@ dependencies {
 
     implementation("com.amazonaws:aws-lambda-java-core:1.2.3")
     implementation("com.amazonaws:aws-lambda-java-log4j2:1.6.0")
-    implementation("com.fasterxml.jackson.core:jackson-databind:2.17.1")
+    implementation("com.fasterxml.jackson.core:jackson-databind:2.18.0")
     implementation("com.fasterxml.jackson.module:jackson-module-kotlin:2.17.1")
     implementation("com.google.guava:guava:23.0")
     implementation("com.google.protobuf:protobuf-java:$proto")