diff --git a/demos/openvino/download_and_build_openvino.sh b/demos/openvino/download_and_build_openvino.sh
index d9c70029..edf395f1 100755
--- a/demos/openvino/download_and_build_openvino.sh
+++ b/demos/openvino/download_and_build_openvino.sh
@@ -28,36 +28,29 @@ build_opencv() {
       -DBUILD_opencv_python=OFF -DBUILD_PYTHON_SUPPORT=OFF \
       -DBUILD_EXAMPLES=OFF -DWITH_FFMPEG=OFF \
       -DWITH_QT=OFF -DWITH_CUDA=OFF
-    make -j4
+    make -j
     sudo make install
     popd
 }
 
+# Build oneTBB,  OpenVINO_2021 need version 2020.3
 build_tbb() {
     rm -rf deps/tbb_cmake && mkdir -p deps/tbb_cmake
     pushd deps/tbb_cmake
-    git clone https://github.com/wjakob/tbb .
-    git checkout 344fa84f34089681732a54f5def93a30a3056ab9
-    mkdir cmake_build && cd cmake_build
-    cmake ../ \
-      -DCMAKE_BUILD_TYPE=Release \
-      -DCMAKE_CXX_COMPILER=occlum-g++ -DCMAKE_C_COMPILER=occlum-gcc \
-      -DCMAKE_INSTALL_PREFIX=$PREFIX \
-      -DTBB_BUILD_TESTS=OFF \
-      -DTBB_BUILD_TBBMALLOC_PROXY=OFF
-    make
-    sudo make install
+    git clone https://github.com/oneapi-src/oneTBB.git .
+    git checkout v2020.3
+    CXX=occlum-g++ CC=occlum-gcc make tbb -j4
+    find build/ -name libtbb* -exec cp {} $PREFIX/lib/ \;
     popd
 }
 
+
 # Build OpenVINO
 build_openvino() {
     rm -rf openvino_src && mkdir openvino_src
     pushd openvino_src
     git clone https://github.com/opencv/dldt .
-    git checkout tags/2019_R3 -b 2019_R3
-    git apply ../0001-Fix-passing-pre-increment-parameter-cpu-to-CPU_ISSET.patch
-    cd inference-engine
+    git checkout 2021.3
     git submodule init
     git submodule update --recursive
     mkdir build && cd build
@@ -68,8 +61,8 @@ build_openvino() {
       -DENABLE_CLDNN=OFF \
       -DENABLE_MYRIAD=OFF \
       -DENABLE_GNA=OFF
-    [ "$THREADING" == "OMP" ] && rm -rf ../temp/omp/lib/* && cp $PREFIX/lib/libgomp.so ../temp/omp/lib/libiomp5.so
-    [ "$THREADING" == "TBB" ] && rm -rf ../temp/tbb/lib/* && cp $PREFIX/lib/libtbb.so ../temp/tbb/lib && cp $PREFIX/lib/libtbbmalloc.so ../temp/tbb/lib
+    [ "$THREADING" == "OMP" ] && rm -rf ../inference-engine/temp/omp/lib/* && cp $PREFIX/lib/libgomp.so ../inference-engine/temp/omp/lib/libiomp5.so
+    [ "$THREADING" == "TBB" ] && rm -rf ../inference-engine/temp/tbb/lib/* && cp $PREFIX/lib/libtbb.so.2 ../inference-engine/temp/tbb/lib
     cd ../
     rm -rf build && mkdir build && cd build
 #   Substitute OpenCV
@@ -84,7 +77,8 @@ build_openvino() {
       -DENABLE_CLDNN=OFF \
       -DENABLE_OPENCV=OFF \
       -DENABLE_MYRIAD=OFF \
-      -DENABLE_GNA=OFF
+      -DENABLE_GNA=OFF \
+      -DENABLE_VPU=OFF
     make -j4
     popd
 }
diff --git a/demos/openvino/run_benchmark_on_occlum.sh b/demos/openvino/run_benchmark_on_occlum.sh
index 9488dd54..0f5a2090 100755
--- a/demos/openvino/run_benchmark_on_occlum.sh
+++ b/demos/openvino/run_benchmark_on_occlum.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 benchmark=benchmark_app
-inference_bin=openvino_src/inference-engine/bin/intel64/Release
+inference_bin=openvino_src/bin/intel64/Release
 occlum_lib=/usr/local/occlum/x86_64-linux-musl/lib
 set -e
 
@@ -9,6 +9,15 @@ rm -rf occlum_instance
 mkdir occlum_instance
 cd occlum_instance
 occlum init
+cpu_cc=`cat /proc/cpuinfo | grep processor | wc -l`
+#new_json="$(jq '.resource_limits.user_space_size = "4GB" |
+#                .resource_limits.kernel_space_heap_size = "128MB" |
+#                .resource_limits.kernel_space_stack_size = "16MB" |
+#                .resource_limits.max_num_of_threads = 128 |
+#                .process.default_mmap_size = "1024MB" |
+#                .process.default_stack_size = "8MB" |
+#                .process.default_heap_size = "32MB" |
+#                .metadata.debuggable = false ' Occlum.json)" && \
 new_json="$(jq '.resource_limits.user_space_size = "320MB" |
                 .process.default_mmap_size = "256MB"' Occlum.json)" && \
 echo "${new_json}" > Occlum.json
@@ -16,18 +25,23 @@ echo "${new_json}" > Occlum.json
 # 2. Copy files into Occlum Workspace and Build
 cp ../$inference_bin/$benchmark image/bin
 cp ../$inference_bin/lib/libinference_engine.so image/lib
+cp ../$inference_bin/lib/libinference_engine_c_api.so image/lib
 cp ../$inference_bin/lib/libformat_reader.so image/lib
-cp ../$inference_bin/lib/libcpu_extension.so image/lib
-cp ../$inference_bin/lib/libHeteroPlugin.so image/lib
+cp ../$inference_bin/lib/libinference_engine_transformations.so image/lib
+cp ../$inference_bin/lib/libngraph.so image/lib
+cp ../$inference_bin/lib/libinference_engine_ir_v7_reader.so image/lib
+cp ../$inference_bin/lib/libinference_engine_ir_reader.so image/lib
 cp ../$inference_bin/lib/libMKLDNNPlugin.so image/lib
+cp ../$inference_bin/lib/libinference_engine_legacy.so image/lib
+cp ../$inference_bin/lib/libinference_engine_lp_transformations.so image/lib
 cp ../$inference_bin/lib/plugins.xml image/lib
 cp $occlum_lib/libopencv_imgcodecs.so.4.1 image/lib
 cp $occlum_lib/libopencv_imgproc.so.4.1 image/lib
 cp $occlum_lib/libopencv_core.so.4.1 image/lib
 cp $occlum_lib/libopencv_videoio.so.4.1 image/lib
 cp $occlum_lib/libz.so.1 image/lib
-[ -e $occlum_lib/libtbb.so ] && cp $occlum_lib/libtbb.so image/lib
-[ -e $occlum_lib/libtbbmalloc.so ] && cp $occlum_lib/libtbbmalloc.so image/lib
+[ -e $occlum_lib/libtbb.so.2 ] && cp $occlum_lib/libtbb.so.2 image/lib
+[ -e $occlum_lib/libtbbmalloc.so.2 ] && cp $occlum_lib/libtbbmalloc.so.2 image/lib
 mkdir image/model
 cp -r ../model/* image/model
 occlum build