diff --git a/data/src/main/java/one/nem/lacerta/data/impl/LacertaLibraryImpl.java b/data/src/main/java/one/nem/lacerta/data/impl/LacertaLibraryImpl.java
index 3a182552..086005f8 100644
--- a/data/src/main/java/one/nem/lacerta/data/impl/LacertaLibraryImpl.java
+++ b/data/src/main/java/one/nem/lacerta/data/impl/LacertaLibraryImpl.java
@@ -2,7 +2,9 @@ package one.nem.lacerta.data.impl;
 
 import java.text.DateFormat;
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
+import java.util.concurrent.CompletableFuture;
 
 import javax.inject.Inject;
 
@@ -28,23 +30,26 @@ public class LacertaLibraryImpl implements LacertaLibrary {
     }
 
     @Override
-    public ArrayList<ListItem> getRecentDocument(int limit) {
-        List<DocumentEntity> documentEntities = database.documentDao().getRecentDocument(limit);
+    public CompletableFuture<ArrayList<ListItem>> getRecentDocument(int limit) {
+        return CompletableFuture.supplyAsync(() -> {
+            List<DocumentEntity> documentEntities = database.documentDao().getRecentDocument(limit);
 
-        ArrayList<ListItem> listItems = new ArrayList<>();
-        for (DocumentEntity documentEntity : documentEntities) {
-            ListItem listItem = new ListItem();
-            listItem.setItemType(ListItemType.ITEM_TYPE_DOCUMENT);
-            listItem.setTitle(documentEntity.title);
-            listItem.setDescription(DateFormat.getDateInstance().format(documentEntity.updatedAt));
-            listItem.setItemId(documentEntity.id);
-            listItems.add(listItem);
-        }
-        return listItems;
+            ArrayList<ListItem> listItems = new ArrayList<>();
+            for (DocumentEntity documentEntity : documentEntities) {
+                ListItem listItem = new ListItem();
+                listItem.setItemType(ListItemType.ITEM_TYPE_DOCUMENT);
+                listItem.setTitle(documentEntity.title);
+                listItem.setDescription(DateFormat.getDateInstance().format(documentEntity.updatedAt));
+                listItem.setItemId(documentEntity.id);
+                listItems.add(listItem);
+            }
+
+            return listItems;
+        });
     }
 
     @Override
-    public ArrayList<ListItem> getRecentDocument(int limit, int offset) {
+    public CompletableFuture<ArrayList<ListItem>> getRecentDocument(int limit, int offset) {
         return null; // TODO-rca: Implement
     }