diff --git a/.github/workflows/manually_build.yml b/.github/workflows/manually_build.yml
index c3e1dfbd..e9239824 100644
--- a/.github/workflows/manually_build.yml
+++ b/.github/workflows/manually_build.yml
@@ -862,32 +862,18 @@ jobs:
         sudo docker push ${bigdata_custom_image}:${TAG}
         sudo docker tag ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
         sudo docker push 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
-        sudo docker rmi -f ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
-
-        export bigdata_custom_image=intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference-32g
-        sudo docker build \
-          --no-cache=true \
-          --build-arg BASE_IMAGE_NAME=${bigdata_base_image} \
-          --build-arg BASE_IMAGE_TAG=${TAG} \
-          --build-arg SGX_MEM_SIZE=32G \
-          --build-arg SGX_LOG_LEVEL=error \
-          -t ${bigdata_custom_image}:${TAG} \
-          -f ./Dockerfile .
-        sudo docker push ${bigdata_custom_image}:${TAG}
-        sudo docker tag ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
-        sudo docker push 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
         sudo docker tag ${bigdata_custom_image}:${TAG} intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference:latest
         sudo docker push intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference:latest
         sudo docker tag ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference:latest
         sudo docker push 10.239.45.10/arda/intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference:latest
         sudo docker rmi -f ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
 
-        export bigdata_custom_image=intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference-64g
+        export bigdata_custom_image=intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference-8g
         sudo docker build \
           --no-cache=true \
           --build-arg BASE_IMAGE_NAME=${bigdata_base_image} \
           --build-arg BASE_IMAGE_TAG=${TAG} \
-          --build-arg SGX_MEM_SIZE=64G \
+          --build-arg SGX_MEM_SIZE=8G \
           --build-arg SGX_LOG_LEVEL=error \
           -t ${bigdata_custom_image}:${TAG} \
           -f ./Dockerfile .
@@ -910,26 +896,12 @@ jobs:
         sudo docker push 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
         sudo docker rmi -f ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
 
-        export bigdata_custom_image=intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference-32g-all
+        export bigdata_custom_image=intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference-8g-all
         sudo docker build \
           --no-cache=true \
           --build-arg BASE_IMAGE_NAME=${bigdata_base_image} \
           --build-arg BASE_IMAGE_TAG=${TAG} \
-          --build-arg SGX_MEM_SIZE=32G \
-          --build-arg SGX_LOG_LEVEL=all \
-          -t ${bigdata_custom_image}:${TAG} \
-          -f ./Dockerfile .
-        sudo docker push ${bigdata_custom_image}:${TAG}
-        sudo docker tag ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
-        sudo docker push 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
-        sudo docker rmi -f ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
-
-        export bigdata_custom_image=intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference-64g-all
-        sudo docker build \
-          --no-cache=true \
-          --build-arg BASE_IMAGE_NAME=${bigdata_base_image} \
-          --build-arg BASE_IMAGE_TAG=${TAG} \
-          --build-arg SGX_MEM_SIZE=64G \
+          --build-arg SGX_MEM_SIZE=8G \
           --build-arg SGX_LOG_LEVEL=all \
           -t ${bigdata_custom_image}:${TAG} \
           -f ./Dockerfile .
diff --git a/.github/workflows/manually_build_for_testing.yml b/.github/workflows/manually_build_for_testing.yml
index ca9110f7..8d6cbae2 100644
--- a/.github/workflows/manually_build_for_testing.yml
+++ b/.github/workflows/manually_build_for_testing.yml
@@ -752,26 +752,12 @@ jobs:
         sudo docker push 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
         sudo docker rmi -f ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
 
-        export bigdata_custom_image=intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference-32g
+        export bigdata_custom_image=intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference-8g
         sudo docker build \
           --no-cache=true \
           --build-arg BASE_IMAGE_NAME=${bigdata_base_image} \
           --build-arg BASE_IMAGE_TAG=${TAG} \
-          --build-arg SGX_MEM_SIZE=32G \
-          --build-arg SGX_LOG_LEVEL=error \
-          -t ${bigdata_custom_image}:${TAG} \
-          -f ./Dockerfile .
-        sudo docker push ${bigdata_custom_image}:${TAG}
-        sudo docker tag ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
-        sudo docker push 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
-        sudo docker rmi -f ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
-
-        export bigdata_custom_image=intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference-64g
-        sudo docker build \
-          --no-cache=true \
-          --build-arg BASE_IMAGE_NAME=${bigdata_base_image} \
-          --build-arg BASE_IMAGE_TAG=${TAG} \
-          --build-arg SGX_MEM_SIZE=64G \
+          --build-arg SGX_MEM_SIZE=8G \
           --build-arg SGX_LOG_LEVEL=error \
           -t ${bigdata_custom_image}:${TAG} \
           -f ./Dockerfile .
@@ -794,26 +780,12 @@ jobs:
         sudo docker push 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
         sudo docker rmi -f ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
 
-        export bigdata_custom_image=intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference-32g-all
+        export bigdata_custom_image=intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference-8g-all
         sudo docker build \
           --no-cache=true \
           --build-arg BASE_IMAGE_NAME=${bigdata_base_image} \
           --build-arg BASE_IMAGE_TAG=${TAG} \
-          --build-arg SGX_MEM_SIZE=32G \
-          --build-arg SGX_LOG_LEVEL=all \
-          -t ${bigdata_custom_image}:${TAG} \
-          -f ./Dockerfile .
-        sudo docker push ${bigdata_custom_image}:${TAG}
-        sudo docker tag ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
-        sudo docker push 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
-        sudo docker rmi -f ${bigdata_custom_image}:${TAG} 10.239.45.10/arda/${bigdata_custom_image}:${TAG}
-
-        export bigdata_custom_image=intelanalytics/bigdl-ppml-trusted-bigdata-gramine-reference-64g-all
-        sudo docker build \
-          --no-cache=true \
-          --build-arg BASE_IMAGE_NAME=${bigdata_base_image} \
-          --build-arg BASE_IMAGE_TAG=${TAG} \
-          --build-arg SGX_MEM_SIZE=64G \
+          --build-arg SGX_MEM_SIZE=8G \
           --build-arg SGX_LOG_LEVEL=all \
           -t ${bigdata_custom_image}:${TAG} \
           -f ./Dockerfile .