diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index eb46a1d0..f50e9b17 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -17,6 +17,7 @@ jobs:
         matrix:
             include:
                 - image: centos:7
+                  name: prepare
                   run: |
                     sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/*.repo
                     sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/*.repo
@@ -31,7 +32,7 @@ jobs:
         - name: prepare
           run: ${{ matrix.run }}
         - uses: actions/checkout@v3
-        - name: build test
+        - name: prepare necessary dependences
           run: |
             yum install -y git ncurses-devel bison libaio-devel openssl openssl-devel cyrus-sasl-devel openldap-devel libtirpc-devel which
             yum install -y centos-release-scl
@@ -42,6 +43,7 @@ jobs:
             yum install -y devtoolset-10-gcc devtoolset-10-gcc-c++ devtoolset-10-binutils
             source /opt/rh/devtoolset-10/enable
             gcc --version
-            curl -o depend/boost_1_70_0.tar.gz https://archives.boost.io/release/1.70.0/source/boost_1_70_0.tar.gz
-            tar xzf depend/boost_1_70_0.tar.gz -C depend
-            ./build.sh -b ${{ github.workspace }}/depend/boost_1_70_0 -D 1
+            mkdir /txsql_extra && curl -o /txsql_extra/boost_1_70_0.tar.gz https://archives.boost.io/release/1.70.0/source/boost_1_70_0.tar.gz
+            tar xzf /txsql_extra/boost_1_70_0.tar.gz -C /txsql_extra
+        - name: build test
+            ./build.sh -b /txsql_extra/boost_1_70_0 -D 1