diff --git a/connector-runtime/spring-boot-starter-camunda-connectors/src/main/java/io/camunda/connector/runtime/OutboundConnectorsAutoConfiguration.java b/connector-runtime/spring-boot-starter-camunda-connectors/src/main/java/io/camunda/connector/runtime/OutboundConnectorsAutoConfiguration.java
index 5ddb3c1c0c..d8e4b59a66 100644
--- a/connector-runtime/spring-boot-starter-camunda-connectors/src/main/java/io/camunda/connector/runtime/OutboundConnectorsAutoConfiguration.java
+++ b/connector-runtime/spring-boot-starter-camunda-connectors/src/main/java/io/camunda/connector/runtime/OutboundConnectorsAutoConfiguration.java
@@ -163,7 +163,6 @@ public ConsoleSecretApiClient consoleSecretApiClient(CamundaClientProperties cli
   @Bean
   @ConditionalOnMissingBean
   public ObjectMapper objectMapper(DocumentFactory documentFactory) {
-    ConnectorsObjectMapperSupplier.getCopy(documentFactory, DocumentModuleSettings.create());
-    return ConnectorsObjectMapperSupplier.getCopy();
+    return ConnectorsObjectMapperSupplier.getCopy(documentFactory, DocumentModuleSettings.create());
   }
 }
diff --git a/connector-sdk/test/src/main/java/io/camunda/connector/test/inbound/InboundConnectorContextBuilder.java b/connector-sdk/test/src/main/java/io/camunda/connector/test/inbound/InboundConnectorContextBuilder.java
index fb6f866114..bed14edf99 100644
--- a/connector-sdk/test/src/main/java/io/camunda/connector/test/inbound/InboundConnectorContextBuilder.java
+++ b/connector-sdk/test/src/main/java/io/camunda/connector/test/inbound/InboundConnectorContextBuilder.java
@@ -24,6 +24,7 @@
 import io.camunda.connector.api.json.ConnectorsObjectMapperSupplier;
 import io.camunda.connector.api.secret.SecretProvider;
 import io.camunda.connector.api.validation.ValidationProvider;
+import io.camunda.connector.document.annotation.jackson.JacksonModuleDocument;
 import io.camunda.connector.runtime.core.AbstractConnectorContext;
 import io.camunda.connector.runtime.core.inbound.InboundConnectorElement;
 import io.camunda.connector.runtime.core.inbound.InboundConnectorReportingContext;
@@ -50,13 +51,16 @@ public class InboundConnectorContextBuilder {
   protected Map<String, Object> properties;
   protected InboundConnectorDefinition definition;
   protected ValidationProvider validationProvider;
-
-  protected ObjectMapper objectMapper = ConnectorsObjectMapperSupplier.getCopy();
-
   protected CorrelationResult result;
-
   protected DocumentFactory documentFactory =
       new DocumentFactoryImpl(InMemoryDocumentStore.INSTANCE);
+  protected ObjectMapper objectMapper =
+      ConnectorsObjectMapperSupplier.getCopy()
+          .registerModule(
+              new JacksonModuleDocument(
+                  this.documentFactory,
+                  null,
+                  JacksonModuleDocument.DocumentModuleSettings.create()));
 
   public static InboundConnectorContextBuilder create() {
     return new InboundConnectorContextBuilder();
@@ -167,6 +171,13 @@ public InboundConnectorContextBuilder validation(ValidationProvider validationPr
     return this;
   }
 
+  public InboundConnectorContextBuilder documentFactory(DocumentFactory documentFactory) {
+    this.objectMapper =
+        ConnectorsObjectMapperSupplier.getCopy(
+            documentFactory, JacksonModuleDocument.DocumentModuleSettings.create());
+    return this;
+  }
+
   /**
    * Sets a custom {@link ObjectMapper} that is used to serialize and deserialize the properties. If
    * not provided, default mapper will be used.