diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index a5041891f..244c0b99b 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -148,6 +148,7 @@ jobs:
           cd src/github.com/goharbor/harbor
           env
           df -h
+          docker system prune -a -f
           bash ./tests/showtime.sh ./tests/ci/api_common_install.sh $IP DB
       - name: script
         run: |
diff --git a/tests/ci/api_common_install.sh b/tests/ci/api_common_install.sh
index f962bdc85..c2dcab01a 100755
--- a/tests/ci/api_common_install.sh
+++ b/tests/ci/api_common_install.sh
@@ -4,7 +4,6 @@ set -x
 set +e
 sudo rm -fr /data/*
 sudo mkdir -p /data
-docker system prune -a -f
 DIR="$(cd "$(dirname "$0")" && pwd)"
 
 set -e
@@ -38,4 +37,4 @@ for((i=1;i<=30;i++)); do
   echo $i waiting 10 seconds...
   sleep 10
   curl -k -L -f 127.0.0.1/api/v2.0/systeminfo && break
-done
\ No newline at end of file
+done