diff --git a/.github/workflows/unitest.yml b/.github/workflows/unitest.yml
index 1ea0ae2..97e56a2 100644
--- a/.github/workflows/unitest.yml
+++ b/.github/workflows/unitest.yml
@@ -17,7 +17,6 @@ jobs:
       run: |
         df -h
 
-        docker rmi `docker images -q`
         sudo rm -rf /usr/share/dotnet /etc/mysql /etc/php /etc/apt/sources.list.d
         sudo -E apt-get -y purge azure-cli ghc* zulu* hhvm llvm* firefox google* dotnet* powershell openjdk* mysql* php* android*
         sudo -E apt-get update