diff --git a/samples/index_tuning_sample/requirements.txt b/samples/index_tuning_sample/requirements.txt
index 345b0682..38630c9b 100644
--- a/samples/index_tuning_sample/requirements.txt
+++ b/samples/index_tuning_sample/requirements.txt
@@ -1,3 +1,3 @@
-langchain-community==0.3.30
+langchain-community==0.3.31
 langchain-google-cloud-sql-pg==0.14.1
 langchain-google-vertexai==2.1.2
diff --git a/tests/test_async_checkpoint.py b/tests/test_async_checkpoint.py
index c78fc726..821b27c0 100644
--- a/tests/test_async_checkpoint.py
+++ b/tests/test_async_checkpoint.py
@@ -78,6 +78,7 @@
         "__start__": {"__start__": 1},
         "node": {"start:node": 2},
     },
+    "updated_channels": [],
 }
 
 
@@ -212,6 +213,7 @@ def test_data() -> dict[str, Any]:
             "__start__": {"__start__": 1},
             "node": {"start:node": 2},
         },
+        "updated_channels": [],
     }
     chkpnt_1: Checkpoint = empty_checkpoint()
     chkpnt_2: Checkpoint = create_checkpoint(chkpnt_1, {}, 1)
diff --git a/tests/test_checkpoint.py b/tests/test_checkpoint.py
index 05545168..a8b0f0d0 100644
--- a/tests/test_checkpoint.py
+++ b/tests/test_checkpoint.py
@@ -59,6 +59,7 @@
         "__start__": {"__start__": 1},
         "node": {"start:node": 2},
     },
+    "updated_channels": [],
 }
 
 
@@ -235,6 +236,7 @@ def test_data() -> dict[str, Any]:
             "__start__": {"__start__": 1},
             "node": {"start:node": 2},
         },
+        "updated_channels": [],
     }
     chkpnt_1: Checkpoint = empty_checkpoint()
     chkpnt_2: Checkpoint = create_checkpoint(chkpnt_1, {}, 1)