diff --git a/data/src/main/java/one/nem/lacerta/data/Document.java b/data/src/main/java/one/nem/lacerta/data/Document.java
index cd38acfc..70610913 100644
--- a/data/src/main/java/one/nem/lacerta/data/Document.java
+++ b/data/src/main/java/one/nem/lacerta/data/Document.java
@@ -18,6 +18,8 @@ public interface Document {
 
     CompletableFuture<DocumentDetail> createDocument();
 
+    CompletableFuture<Void> renameDocument(String documentId, String name);
+
     CompletableFuture<Void> deleteDocument(String documentId);
 
     CompletableFuture<Void> updateDocument(DocumentDetail detail);
diff --git a/data/src/main/java/one/nem/lacerta/data/impl/DocumentImpl.java b/data/src/main/java/one/nem/lacerta/data/impl/DocumentImpl.java
index 888a47f6..7ee8511f 100644
--- a/data/src/main/java/one/nem/lacerta/data/impl/DocumentImpl.java
+++ b/data/src/main/java/one/nem/lacerta/data/impl/DocumentImpl.java
@@ -1,5 +1,7 @@
 package one.nem.lacerta.data.impl;
 
+import androidx.room.Update;
+
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Date;
@@ -124,6 +126,19 @@ public class DocumentImpl implements Document {
         });
     }
 
+    @Override
+    public CompletableFuture<Void> renameDocument(String documentId, String name) {
+        return CompletableFuture.supplyAsync(() -> {
+            DocumentEntity documentEntity = database.documentDao().findById(documentId);
+            if (documentEntity == null) {
+                throw new IllegalArgumentException("documentId is not found");
+            }
+            documentEntity.title = name;
+            database.documentDao().update(documentEntity);
+            return null;
+        });
+    }
+
     @Override
     public CompletableFuture<DocumentDetail> getDocument(String documentId) {
         return CompletableFuture.supplyAsync(() -> {