diff --git a/sdk/common/src/main/java/io/gisbi/jackson/JacksonConfig.java b/sdk/common/src/main/java/io/gisbi/jackson/JacksonConfig.java
index 61fd6ec..5ca6a70 100644
--- a/sdk/common/src/main/java/io/gisbi/jackson/JacksonConfig.java
+++ b/sdk/common/src/main/java/io/gisbi/jackson/JacksonConfig.java
@@ -3,6 +3,7 @@ package io.gisbi.jackson;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.core.StreamReadConstraints;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
 import org.springframework.context.annotation.Bean;
@@ -25,6 +26,13 @@ public class JacksonConfig {
         return objectMapper;
     }
 
+    @Bean
+    public Jackson2ObjectMapperBuilder jackson2ObjectMapperBuilder() {
+        return new Jackson2ObjectMapperBuilder()
+                .serializerByType(Long.TYPE, new ToStringSerializer())
+                .serializerByType(Long.class, new ToStringSerializer());
+    }
+
     @Bean
     public Jackson2ObjectMapperBuilderCustomizer customJackson() {
         return jacksonObjectMapperBuilder -> {