diff --git a/libs/langchain/langchain/storage/file_system.py b/libs/langchain/langchain/storage/file_system.py
index 3437684758a..477395ce2e3 100644
--- a/libs/langchain/langchain/storage/file_system.py
+++ b/libs/langchain/langchain/storage/file_system.py
@@ -1,5 +1,6 @@
 import os
 import re
+import time
 from pathlib import Path
 from typing import Iterator, List, Optional, Sequence, Tuple, Union
 
@@ -42,6 +43,7 @@ class LocalFileStore(ByteStore):
         *,
         chmod_file: Optional[int] = None,
         chmod_dir: Optional[int] = None,
+        update_atime: bool = False,
     ) -> None:
         """Implement the BaseStore interface for the local file system.
 
@@ -52,10 +54,15 @@ class LocalFileStore(ByteStore):
                 for newly created files, overriding the current `umask` if needed.
             chmod_dir: (optional, defaults to `None`) If specified, sets permissions
                 for newly created dirs, overriding the current `umask` if needed.
+            update_atime: (optional, defaults to `False`) If `True`, updates the
+                filesystem access time (but not the modified time) when a file is read.
+                This allows MRU/LRU cache policies to be implemented for filesystems
+                where access time updates are disabled.
         """
         self.root_path = Path(root_path).absolute()
         self.chmod_file = chmod_file
         self.chmod_dir = chmod_dir
+        self.update_atime = update_atime
 
     def _get_full_path(self, key: str) -> Path:
         """Get the full path for a given key relative to the root path.
@@ -112,6 +119,9 @@ class LocalFileStore(ByteStore):
             if full_path.exists():
                 value = full_path.read_bytes()
                 values.append(value)
+                if self.update_atime:
+                    # update access time only; preserve modified time
+                    os.utime(full_path, (time.time(), os.stat(full_path).st_mtime))
             else:
                 values.append(None)
         return values
diff --git a/libs/langchain/tests/unit_tests/storage/test_filesystem.py b/libs/langchain/tests/unit_tests/storage/test_filesystem.py
index 455d39e7dd0..c878bd6f191 100644
--- a/libs/langchain/tests/unit_tests/storage/test_filesystem.py
+++ b/libs/langchain/tests/unit_tests/storage/test_filesystem.py
@@ -57,6 +57,31 @@ def test_mset_chmod(chmod_dir_s: str, chmod_file_s: str) -> None:
         assert (os.stat(file_path).st_mode & 0o777) == chmod_file
 
 
+def test_mget_update_atime() -> None:
+    # Create a temporary directory for testing
+    with tempfile.TemporaryDirectory() as temp_dir:
+        # Instantiate the LocalFileStore with a directory inside the temporary directory
+        # as the root path
+        temp_dir = os.path.join(temp_dir, "store_dir")
+        file_store = LocalFileStore(temp_dir, update_atime=True)
+
+        # Set values for keys
+        key_value_pairs = [("key1", b"value1"), ("key2", b"value2")]
+        file_store.mset(key_value_pairs)
+
+        # Get original access time
+        dir_path = str(file_store.root_path)
+        file_path = os.path.join(dir_path, "key1")
+        atime1 = os.stat(file_path).st_atime
+
+        # Get values for keys
+        _ = file_store.mget(["key1", "key2"])
+
+        # Make sure the filesystem access time has been updated
+        atime2 = os.stat(file_path).st_atime
+        assert atime2 != atime1
+
+
 def test_mdelete(file_store: LocalFileStore) -> None:
     # Set values for keys
     key_value_pairs = [("key1", b"value1"), ("key2", b"value2")]