trying to install DeepStream 4.0 at jetbot nano implementation

sudo dpkg -i deepstream-4.0_4.0-1_arm64.deb 
Selecting previously unselected package deepstream-4.0.
(Reading database ... 140610 files and directories currently installed.)
Preparing to unpack deepstream-4.0_4.0-1_arm64.deb ...
Unpacking deepstream-4.0 (4.0-1) ...
dpkg: dependency problems prevent configuration of deepstream-4.0:
 deepstream-4.0 depends on libnvinfer5 (>= 5.1.2); however:
  Version of libnvinfer5 on system is 5.0.6-1+cuda10.0.
 deepstream-4.0 depends on libnvinfer-dev (>= 5.1.2); however:
  Version of libnvinfer-dev on system is 5.0.6-1+cuda10.0.

dpkg: error processing package deepstream-4.0 (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:


TensorRT 5.1 is required for Deepstream 4.0 installation:

deepstream-4.0 depends on libnvinfer5 (>= 5.1.2); however:

It looks like the default JetBot image cannot reach this requirement.
You can try to create a customized JetBot SD Card image with this tutorial.

And please setup the base package with JetPack4.2.1 to get the TensorRT 5.1 support.