diff --git a/libs/langchain/langchain/agents/format_scratchpad/xml.py b/libs/langchain/langchain/agents/format_scratchpad/xml.py
index 22fd79294cb..3fb73637790 100644
--- a/libs/langchain/langchain/agents/format_scratchpad/xml.py
+++ b/libs/langchain/langchain/agents/format_scratchpad/xml.py
@@ -1,4 +1,4 @@
-from typing import Literal
+from typing import Literal, Optional
 
 from langchain_core.agents import AgentAction
 
@@ -21,7 +21,7 @@ def _escape(xml: str) -> str:
 def format_xml(
     intermediate_steps: list[tuple[AgentAction, str]],
     *,
-    escape_format: Literal["minimal"] | None = "minimal",
+    escape_format: Optional[Literal["minimal"]] = "minimal",
 ) -> str:
     """Format the intermediate steps as XML.
 
diff --git a/libs/langchain/langchain/agents/output_parsers/xml.py b/libs/langchain/langchain/agents/output_parsers/xml.py
index 566baec400d..9c2ebdd791b 100644
--- a/libs/langchain/langchain/agents/output_parsers/xml.py
+++ b/libs/langchain/langchain/agents/output_parsers/xml.py
@@ -1,5 +1,5 @@
 import re
-from typing import Literal, Union
+from typing import Literal, Union, Optional
 
 from langchain_core.agents import AgentAction, AgentFinish
 from pydantic import Field
@@ -56,7 +56,7 @@ class XMLAgentOutputParser(AgentOutputParser):
             contains malformed XML structure.
     """
 
-    escape_format: Literal["minimal"] | None = Field(default="minimal")
+    escape_format: Optional[Literal["minimal"]] = Field(default="minimal")
     """The format to use for escaping XML characters.
     
     minimal - uses custom delimiters to replace XML tags within content,