diff --git a/Dockerfile b/Dockerfile
index dfd2f99..ebe7814 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -25,7 +25,7 @@ USER root
 # install cuda toolkit 
 # https://developer.nvidia.com/cuda-11.1.0-download-archive?target_os=Linux&target_arch=x86_64&target_distro=Ubuntu&target_version=2004&target_type=debnetwork
 RUN apt-get update && \
-    apt-get install -y software-properties-common && \
+    apt-get install -y p7zip-full software-properties-common && \
     wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64/cuda-ubuntu2004.pin && \
     mv cuda-ubuntu2004.pin /etc/apt/preferences.d/cuda-repository-pin-600  && \
     apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64/7fa2af80.pub  && \
@@ -35,7 +35,9 @@ RUN apt-get update && \
     rm -rf /etc/apt/sources.list.d/cuda.list && \
     rm -rf /etc/apt/sources.list.d/nvidia-ml.list && \
     apt-get update  && \
-    apt-get -y install cuda && \
+#apt-get -y install cuda && \
+    apt-get install -qqy cuda-11-1 cuda-nvcc-11-1	cuda-toolkit-11-1 && \
+    
 #  wget -nv https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64/libcudnn8_8.0.5.39-1+cuda11.1_amd64.deb -O /var/tmp/libcudnn8.deb  && \
 #  wget -nv https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64/libnccl2_2.8.4-1+cuda11.1_amd64.deb -O /var/tmp/libnccl2.deb  && \
 #  dpkg -i /var/tmp/libcudnn8.deb /var/tmp/libnccl2.deb  && \