diff --git a/java/105_aggregation_pipeline_merge.ipynb b/java/105_aggregation_pipeline_merge.ipynb
index 309fa31..c3818ed 100644
--- a/java/105_aggregation_pipeline_merge.ipynb
+++ b/java/105_aggregation_pipeline_merge.ipynb
@@ -43,6 +43,7 @@
     "import com.mongodb.client.model.Accumulators;\n",
     "import com.mongodb.client.model.Aggregates;\n",
     "import com.mongodb.client.model.Filters;\n",
+    "import com.mongodb.client.model.MergeOptions;\n",
     "import org.bson.Document;\n",
     "\n",
     "import java.util.Arrays;\n",