diff --git a/src/main/java/it/cnr/isti/workflow/manager/model/flows/Node.java b/src/main/java/it/cnr/isti/workflow/manager/model/flows/Node.java
index ec95136..72124f0 100644
--- a/src/main/java/it/cnr/isti/workflow/manager/model/flows/Node.java
+++ b/src/main/java/it/cnr/isti/workflow/manager/model/flows/Node.java
@@ -2,12 +2,6 @@ package it.cnr.isti.workflow.manager.model.flows;
 
 import java.util.List;
 import java.util.Map;
-
-import com.fasterxml.jackson.annotation.JsonAutoDetect;
-import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
-import com.fasterxml.jackson.databind.annotation.JsonSerialize;
-
-import it.cnr.isti.workflow.manager.model.types.nodes.definitions.NodeDefinition;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;