diff --git a/nx_arangodb/classes/digraph.py b/nx_arangodb/classes/digraph.py
index 3bfb943..5df8422 100644
--- a/nx_arangodb/classes/digraph.py
+++ b/nx_arangodb/classes/digraph.py
@@ -109,7 +109,7 @@ class DiGraph(Graph, nx.DiGraph):
         Used for inserting node and edge data into the database if and only if
         **incoming_graph_data** is a NetworkX graph.
 
-    write_async : bool (optional, default: True)
+    write_async : bool (optional, default: False)
         Whether to insert data into ArangoDB asynchronously. Used for inserting
         node and edge data into the database if and only if **incoming_graph_data**
         is a NetworkX graph.
@@ -157,7 +157,7 @@ def __init__(
         read_parallelism: int = 10,
         read_batch_size: int = 100000,
         write_batch_size: int = 50000,
-        write_async: bool = True,
+        write_async: bool = False,
         symmetrize_edges: bool = False,
         use_arango_views: bool = False,
         overwrite_graph: bool = False,
diff --git a/nx_arangodb/classes/function.py b/nx_arangodb/classes/function.py
index 11316f9..e40b0e7 100644
--- a/nx_arangodb/classes/function.py
+++ b/nx_arangodb/classes/function.py
@@ -801,7 +801,7 @@ def separate_nodes_by_collections(
 
 
 def transform_local_documents_for_adb(
-    original_documents: dict[str, Any]
+    original_documents: dict[str, Any],
 ) -> list[dict[str, Any]]:
     """Transform original documents into a format suitable for UPSERT
     operations in ArangoDB. Returns a list of documents with '_key' attribute
diff --git a/nx_arangodb/classes/graph.py b/nx_arangodb/classes/graph.py
index bdcb5a2..8c9f335 100644
--- a/nx_arangodb/classes/graph.py
+++ b/nx_arangodb/classes/graph.py
@@ -143,7 +143,7 @@ class Graph(nx.Graph):
         Used for inserting node and edge data into the database if and only if
         **incoming_graph_data** is a NetworkX graph.
 
-    write_async : bool (optional, default: True)
+    write_async : bool (optional, default: False)
         Whether to insert data into ArangoDB asynchronously. Used for inserting
         node and edge data into the database if and only if **incoming_graph_data**
         is a NetworkX graph.
@@ -191,7 +191,7 @@ def __init__(
         read_parallelism: int = 10,
         read_batch_size: int = 100000,
         write_batch_size: int = 50000,
-        write_async: bool = True,
+        write_async: bool = False,
         symmetrize_edges: bool = False,
         use_arango_views: bool = False,
         overwrite_graph: bool = False,
diff --git a/nx_arangodb/classes/multidigraph.py b/nx_arangodb/classes/multidigraph.py
index f115ab8..8cd4f4b 100644
--- a/nx_arangodb/classes/multidigraph.py
+++ b/nx_arangodb/classes/multidigraph.py
@@ -119,7 +119,7 @@ class MultiDiGraph(MultiGraph, DiGraph, nx.MultiDiGraph):
         Used for inserting node and edge data into the database if and only if
         **incoming_graph_data** is a NetworkX graph.
 
-    write_async : bool (optional, default: True)
+    write_async : bool (optional, default: False)
         Whether to insert data into ArangoDB asynchronously. Used for inserting
         node and edge data into the database if and only if **incoming_graph_data**
         is a NetworkX graph.
@@ -168,7 +168,7 @@ def __init__(
         read_parallelism: int = 10,
         read_batch_size: int = 100000,
         write_batch_size: int = 50000,
-        write_async: bool = True,
+        write_async: bool = False,
         symmetrize_edges: bool = False,
         use_arango_views: bool = False,
         overwrite_graph: bool = False,
diff --git a/nx_arangodb/classes/multigraph.py b/nx_arangodb/classes/multigraph.py
index 7d7db59..66abe6a 100644
--- a/nx_arangodb/classes/multigraph.py
+++ b/nx_arangodb/classes/multigraph.py
@@ -120,7 +120,7 @@ class MultiGraph(Graph, nx.MultiGraph):
         Used for inserting node and edge data into the database if and only if
         **incoming_graph_data** is a NetworkX graph.
 
-    write_async : bool (optional, default: True)
+    write_async : bool (optional, default: False)
         Whether to insert data into ArangoDB asynchronously. Used for inserting
         node and edge data into the database if and only if **incoming_graph_data**
         is a NetworkX graph.
@@ -169,7 +169,7 @@ def __init__(
         read_parallelism: int = 10,
         read_batch_size: int = 100000,
         write_batch_size: int = 50000,
-        write_async: bool = True,
+        write_async: bool = False,
         symmetrize_edges: bool = False,
         use_arango_views: bool = False,
         overwrite_graph: bool = False,