diff --git a/graphql-dgs-spring-webmvc/src/main/kotlin/com/netflix/graphql/dgs/mvc/DgsRestSchemaJsonController.kt b/graphql-dgs-spring-webmvc/src/main/kotlin/com/netflix/graphql/dgs/mvc/DgsRestSchemaJsonController.kt
index 18371dbfa..827fa58fb 100644
--- a/graphql-dgs-spring-webmvc/src/main/kotlin/com/netflix/graphql/dgs/mvc/DgsRestSchemaJsonController.kt
+++ b/graphql-dgs-spring-webmvc/src/main/kotlin/com/netflix/graphql/dgs/mvc/DgsRestSchemaJsonController.kt
@@ -35,8 +35,6 @@ import org.springframework.web.bind.annotation.RestController
 @RestController
 open class DgsRestSchemaJsonController(open val schemaProvider: DgsSchemaProvider) {
 
-    private val mapper = jacksonObjectMapper()
-
     // The @ConfigurationProperties bean name is <prefix>-<fqn>
     @RequestMapping("#{@'dgs.graphql-com.netflix.graphql.dgs.webmvc.autoconfigure.DgsWebMvcConfigurationProperties'.schemaJson.path}", produces = ["application/json"])
     fun schema(): String {
@@ -49,4 +47,8 @@ open class DgsRestSchemaJsonController(open val schemaProvider: DgsSchemaProvide
 
         return mapper.writeValueAsString(execute.toSpecification())
     }
+
+    companion object {
+        private val mapper = jacksonObjectMapper()
+    }
 }
diff --git a/graphql-dgs-subscriptions-sse/src/main/kotlin/com/netflix/graphql/dgs/subscriptions/sse/DgsSSESubscriptionHandler.kt b/graphql-dgs-subscriptions-sse/src/main/kotlin/com/netflix/graphql/dgs/subscriptions/sse/DgsSSESubscriptionHandler.kt
index 779f60d68..ba51f25ae 100644
--- a/graphql-dgs-subscriptions-sse/src/main/kotlin/com/netflix/graphql/dgs/subscriptions/sse/DgsSSESubscriptionHandler.kt
+++ b/graphql-dgs-subscriptions-sse/src/main/kotlin/com/netflix/graphql/dgs/subscriptions/sse/DgsSSESubscriptionHandler.kt
@@ -43,7 +43,6 @@ import java.util.*
  */
 @RestController
 open class DgsSSESubscriptionHandler(open val dgsQueryExecutor: DgsQueryExecutor) {
-    private val mapper = jacksonObjectMapper()
 
     @RequestMapping("/subscriptions", produces = ["text/event-stream"])
     fun subscriptionWithId(@RequestParam("query") queryBase64: String): ResponseEntity<SseEmitter> {
@@ -152,6 +151,7 @@ open class DgsSSESubscriptionHandler(open val dgsQueryExecutor: DgsQueryExecutor
     )
 
     companion object {
+        private val mapper = jacksonObjectMapper()
         private val logger: Logger = LoggerFactory.getLogger(DgsSSESubscriptionHandler::class.java)
     }
 }