diff --git a/libs/langchain/langchain/document_loaders/rocksetdb.py b/libs/langchain/langchain/document_loaders/rocksetdb.py
index d38c6eb4b1b5f1..fd3095d23d9db6 100644
--- a/libs/langchain/langchain/document_loaders/rocksetdb.py
+++ b/libs/langchain/langchain/document_loaders/rocksetdb.py
@@ -94,7 +94,7 @@ def __init__(
         self.request_model = QueryRequestSql
 
         try:
-            self.client.set_application('langchain')
+            self.client.set_application("langchain")
         except AttributeError:
             # ignore
             pass
diff --git a/libs/langchain/langchain/memory/chat_message_histories/rocksetdb.py b/libs/langchain/langchain/memory/chat_message_histories/rocksetdb.py
index 6bc8a388f7ae67..9b3f35b06b8946 100644
--- a/libs/langchain/langchain/memory/chat_message_histories/rocksetdb.py
+++ b/libs/langchain/langchain/memory/chat_message_histories/rocksetdb.py
@@ -198,12 +198,11 @@ def __init__(
         self.sync = sync
 
         try:
-            self.client.set_application('langchain')
+            self.client.set_application("langchain")
         except AttributeError:
             # ignore
             pass
 
-
         if not self._collection_exists():
             self._create_collection()
             self._wait_until_collection_created()
diff --git a/libs/langchain/langchain/vectorstores/rocksetdb.py b/libs/langchain/langchain/vectorstores/rocksetdb.py
index cee0eb68067b7c..5b2fc234a46829 100644
--- a/libs/langchain/langchain/vectorstores/rocksetdb.py
+++ b/libs/langchain/langchain/vectorstores/rocksetdb.py
@@ -85,7 +85,7 @@ def __init__(
         self._workspace = workspace
 
         try:
-            self._client.set_application('langchain')
+            self._client.set_application("langchain")
         except AttributeError:
             # ignore
             pass