diff --git a/libs/langgraph/langgraph/pregel/remote.py b/libs/langgraph/langgraph/pregel/remote.py
index 0d717f9e0..ae0f5d2f3 100644
--- a/libs/langgraph/langgraph/pregel/remote.py
+++ b/libs/langgraph/langgraph/pregel/remote.py
@@ -2,6 +2,7 @@ from typing import (
     Any,
     AsyncIterator,
     Iterator,
+    Literal,
     Optional,
     Sequence,
     Union,
@@ -470,7 +471,7 @@ class RemoteGraph(PregelProtocol):
         input: Any,
         config: Optional[RunnableConfig] = None,
         *,
-        version: All | All,
+        version: Literal["v1", "v2"],
         include_names: Optional[Sequence[All]] = None,
         include_types: Optional[Sequence[All]] = None,
         include_tags: Optional[Sequence[All]] = None,