diff --git a/.github/workflows/yolox-noetic-image-build.yml b/.github/workflows/yolox-noetic-image-build.yml
index b7a4f7b..e607bbc 100644
--- a/.github/workflows/yolox-noetic-image-build.yml
+++ b/.github/workflows/yolox-noetic-image-build.yml
@@ -33,8 +33,6 @@ jobs:
           docker rmi $(docker image ls -q --filter "reference=buildpack*")
           docker rmi $(docker image ls -q --filter "reference=debian*")
           docker rmi $(docker image ls -q --filter "reference=alpine*")
-          docker rmi $(docker image ls -q --filter "reference=ubuntu:18.04")
-          docker rmi $(docker image ls -q --filter "reference=ubuntu:20.04")
           sudo apt purge \
             ansible \
             aria2 \