diff --git a/Dockerfile.main b/Dockerfile.main
index 15636b65..e14316dc 100644
--- a/Dockerfile.main
+++ b/Dockerfile.main
@@ -12,7 +12,7 @@ RUN wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh &
 
 ENV PATH=/opt/miniconda/bin:$PATH
 
-RUN git clone https://github.com/deepmodeling/DeePTB.git -b dev && \
+RUN git clone https://github.com/deepmodeling/DeePTB.git && \
     conda create -n deeptb python=3.8 -c conda-forge -y && \
     conda init && \
     source activate deeptb && \