diff --git a/pyproject.toml b/pyproject.toml
index a381a1c4..26ef1424 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ dependencies = [
     "numpy>=1.24.4, <=2.2.6; python_version == '3.10'",
     "numpy>=1.24.4, <=2.0.2; python_version <= '3.9'",
     "langchain-postgres>=0.0.16",
-    "langgraph-checkpoint>=2.0.9, <3.0.0",
+    "langgraph-checkpoint>=2.0.9, <4.0.0",
     "aiohttp>=3.12.15, <4.0.0",
 ]
 
@@ -41,7 +41,7 @@ Changelog = "https://github.com/googleapis/langchain-google-alloydb-pg-python/bl
 
 [project.optional-dependencies]
 langgraph = [
-    "langgraph-checkpoint>=2.0.9, <3.0.0"
+    "langgraph-checkpoint>=2.0.9, <4.0.0"
 ]
 test = [
     "black[jupyter]==25.9.0",
diff --git a/requirements.txt b/requirements.txt
index 00c722d3..04d90336 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
-google-cloud-alloydb-connector[asyncpg]==1.9.1
-google-cloud-storage==3.4.1
-numpy==2.3.4; python_version >= "3.11"
+google-cloud-alloydb-connector[asyncpg]==1.11.0
+google-cloud-storage==3.7.0
+numpy==2.3.5; python_version >= "3.11"
 numpy==2.2.6; python_version == "3.10"
 numpy==2.0.2; python_version <= "3.9"
-langgraph==0.6.10
+langgraph==1.0.4
 langchain-postgres==0.0.16
diff --git a/tests/test_model_manager.py b/tests/test_model_manager.py
index 994c7a7f..c888dd7f 100644
--- a/tests/test_model_manager.py
+++ b/tests/test_model_manager.py
@@ -70,34 +70,45 @@ async def model_manager(self, engine):
         model_manager = await AlloyDBModelManager.create(engine)
         yield model_manager
 
-    async def test_model_manager_constructor(self, engine):
-        with pytest.raises(Exception):
-            AlloyDBModelManager(engine=engine)
-
-    async def test_acreate_model(self, model_manager):
+    @pytest_asyncio.fixture(scope="function")
+    async def model(self, model_manager):
+        model_id = "text-embedding-005" + str(uuid.uuid4()).replace("-", "_")
         await model_manager.acreate_model(
-            model_id=EMBEDDING_MODEL_NAME,
+            model_id=model_id,
             model_provider="google",
             model_qualified_name="text-embedding-005",
             model_type="text_embedding",
         )
+        try:
+            yield model_manager, model_id
+        finally:
+            await model_manager.adrop_model(model_id=model_id)
+
+    async def test_model_manager_constructor(self, engine):
+        with pytest.raises(Exception):
+            AlloyDBModelManager(engine=engine)
 
-    @pytest.mark.depends(on=["test_acreate_model"])
-    async def test_aget_model(self, model_manager):
-        model_info = await model_manager.aget_model(model_id=EMBEDDING_MODEL_NAME)
-        assert model_info.model_id == EMBEDDING_MODEL_NAME
+    async def test_acreate_model(self, model):
+        pass
+
+    async def test_aget_model(self, model):
+        model_manager, model_id = model
+        model_info = await model_manager.aget_model(model_id=model_id)
+        assert model_info.model_id == model_id
 
     async def test_non_existent_model(self, model_manager):
         model_info = await model_manager.aget_model(model_id="Non_existent_model")
         assert model_info is None
 
-    @pytest.mark.depends(on=["test_aget_model"])
-    async def test_alist_models(self, model_manager):
+    async def test_alist_models(self, model):
+        model_manager, model_id = model
         models_list = await model_manager.alist_models()
-        assert len(models_list) >= 3
+        assert len(models_list) >= 1
         model_ids = [model_info.model_id for model_info in models_list]
-        assert EMBEDDING_MODEL_NAME in model_ids
+        assert model_id in model_ids
 
-    @pytest.mark.depends(on=["test_alist_models"])
-    async def test_adrop_model(self, model_manager):
-        await model_manager.adrop_model(model_id=EMBEDDING_MODEL_NAME)
+    async def test_adrop_model(self, model):
+        model_manager, model_id = model
+        await model_manager.adrop_model(model_id=model_id)
+        model_info = await model_manager.aget_model(model_id=model_id)
+        assert model_info is None