diff --git a/autogl/module/model/dgl/__init__.py b/autogl/module/model/dgl/__init__.py
index 00c78b5..b203ba8 100644
--- a/autogl/module/model/dgl/__init__.py
+++ b/autogl/module/model/dgl/__init__.py
@@ -3,7 +3,7 @@ from .base import BaseModel
 from .topkpool import AutoTopkpool
 
 
-from .graph_saint import GraphSAINTAggregationModel
+# from .graph_saint import GraphSAINTAggregationModel
 from .gcn import GCN, AutoGCN
 from .graphsage import GraphSAGE, AutoSAGE
 from .gat import GAT,AutoGAT
@@ -14,7 +14,7 @@ __all__ = [
     "register_model",
     "BaseModel",
     "AutoTopkpool",
-    "GraphSAINTAggregationModel",
+    # "GraphSAINTAggregationModel",
     "GCN",
     "AutoGCN",
     "GraphSAGE",
diff --git a/autogl/module/train/__init__.py b/autogl/module/train/__init__.py
index cacdc8d..7a4d1e7 100644
--- a/autogl/module/train/__init__.py
+++ b/autogl/module/train/__init__.py
@@ -1,3 +1,5 @@
+from ...backend import DependentBackend
+
 TRAINER_DICT = {}
 from .base import (
     BaseTrainer,
@@ -24,7 +26,10 @@ def register_trainer(name):
 
 from .graph_classification_full import GraphClassificationFullTrainer
 from .node_classification_full import NodeClassificationFullTrainer
-from .link_prediction import LinkPredictionTrainer
+if DependentBackend.is_pyg():
+    from .link_prediction import LinkPredictionTrainer
+elif DependentBackend.is_dgl():
+    LinkPredictionTrainer = None
 from .node_classification_trainer import *
 from .evaluation import get_feval, Acc, Auc, Logloss, Mrr, MicroF1
 
diff --git a/docs/requirements.txt b/docs/requirements.txt
index d33bcad..9216223 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -13,11 +13,11 @@ requests
 scikit-learn
 scipy
 tabulate
-https://download.pytorch.org/whl/lts/1.8/cpu/torch-1.8.1%2Bcpu-cp36-cp36m-linux_x86_64.whl
-https://pytorch-geometric.com/whl/torch-1.8.0+cpu/torch_cluster-1.5.9-cp36-cp36m-linux_x86_64.whl
-https://pytorch-geometric.com/whl/torch-1.8.0+cpu/torch_scatter-2.0.6-cp36-cp36m-linux_x86_64.whl
-https://pytorch-geometric.com/whl/torch-1.8.0+cpu/torch_sparse-0.6.10-cp36-cp36m-linux_x86_64.whl
-https://pytorch-geometric.com/whl/torch-1.8.0+cpu/torch_spline_conv-1.2.1-cp36-cp36m-linux_x86_64.whl
-torch-geometric
+# https://download.pytorch.org/whl/lts/1.8/cpu/torch-1.8.1%2Bcpu-cp36-cp36m-linux_x86_64.whl
+# https://pytorch-geometric.com/whl/torch-1.8.0+cpu/torch_cluster-1.5.9-cp36-cp36m-linux_x86_64.whl
+# https://pytorch-geometric.com/whl/torch-1.8.0+cpu/torch_scatter-2.0.6-cp36-cp36m-linux_x86_64.whl
+# https://pytorch-geometric.com/whl/torch-1.8.0+cpu/torch_sparse-0.6.10-cp36-cp36m-linux_x86_64.whl
+# https://pytorch-geometric.com/whl/torch-1.8.0+cpu/torch_spline_conv-1.2.1-cp36-cp36m-linux_x86_64.whl
+# torch-geometric
 tqdm
 nni
\ No newline at end of file
diff --git a/setup.py b/setup.py
index bd53a23..e78c790 100644
--- a/setup.py
+++ b/setup.py
@@ -6,30 +6,6 @@ except ModuleNotFoundError:
         "Please appropriately install PyTorch, "
         "see https://pytorch.org/ for installation."
     )
-try:
-    import torch_scatter
-    import torch_sparse
-    import torch_geometric
-    PYG_VER = torch_geometric.__version__.split('.')
-    PYG_VER = [int(PYG_VER[0]), int(PYG_VER[1])]
-    assert PYG_VER >= [1, 7], "PyTorch-Geometric version should be at least 1.7.0"
-except ModuleNotFoundError:
-    raise ModuleNotFoundError(
-        "PyTorch-Geometric not fully installed. "
-        "Please appropriately install PyTorch-Geometric, "
-        "see https://pytorch-geometric.readthedocs.io/en/latest/notes/installation.html for installation."
-    )
-
-if torch.__version__.startswith('1.8.'):
-    try:
-        import torch_cluster
-        import torch_spline_conv
-    except ModuleNotFoundError:
-        raise ModuleNotFoundError(
-            "PyTorch-Geometric not fully installed. "
-            "For PyTorch version 1.8.x, you should also install torch_cluster and torch_spline_conv "
-            "see https://pytorch-geometric.readthedocs.io/en/latest/notes/installation.html for installation."
-        )
 
 from setuptools import setup, find_packages
 
@@ -77,9 +53,6 @@ setup(
         'scipy',
         'tabulate',
         'torch',
-        'torch-geometric',
-        'torch-scatter',
-        'torch-sparse',
         'tqdm',
         'nni'
     ]