diff --git a/paddlespeech/s2t/training/optimizer/adadelta.py b/paddlespeech/s2t/training/optimizer/adadelta.py
index 900b697c..7c3950a9 100644
--- a/paddlespeech/s2t/training/optimizer/adadelta.py
+++ b/paddlespeech/s2t/training/optimizer/adadelta.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import paddle
-from paddle.fluid import framework
+from paddle import framework
 from paddle.optimizer import Optimizer
 
 __all__ = []