diff --git a/.gitea/workflows/main.yaml b/.gitea/workflows/dev.yaml
similarity index 86%
rename from .gitea/workflows/main.yaml
rename to .gitea/workflows/dev.yaml
index c374c4e..abf8730 100644
--- a/.gitea/workflows/main.yaml
+++ b/.gitea/workflows/dev.yaml
@@ -2,13 +2,13 @@ name: Docker Image CI
 on:
   push:
     branches:
-      - main
+      - dev
 
 jobs:
   build:
     runs-on: gitea-official-runner
     container:
-      image: harbor.merlin.xin/testing/merlin/builder:v0.0.0
+      image: harbor.merlin.xin/release/merlin/builder:v0.0.1
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -31,3 +31,5 @@ jobs:
           echo "Pushing image: ${IMAGE_NAME}" 
           docker push ${IMAGE_NAME}
           echo "Successfully pushed: ${IMAGE_NAME}"
+          docker rmi ${IMAGE_NAME}
+          echo "cleaned up local image"
diff --git a/.gitea/workflows/tag.yaml b/.gitea/workflows/tag.yaml
index b54e102..7b6e7fd 100644
--- a/.gitea/workflows/tag.yaml
+++ b/.gitea/workflows/tag.yaml
@@ -8,7 +8,7 @@ jobs:
   build:
     runs-on: gitea-official-runner
     container:
-      image: harbor.merlin.xin/testing/merlin/builder:v0.0.0
+      image: harbor.merlin.xin/release/merlin/builder:v0.0.1
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -30,3 +30,5 @@ jobs:
           echo "Pushing image: ${IMAGE_NAME}" 
           docker push ${IMAGE_NAME}
           echo "Successfully pushed: ${IMAGE_NAME}"
+          docker rmi ${IMAGE_NAME}
+          echo "cleaned up local image"