diff --git a/.gitea/workflows/base-build.yml b/.gitea/workflows/base-build.yml
index c45cef0..fae8e22 100644
--- a/.gitea/workflows/base-build.yml
+++ b/.gitea/workflows/base-build.yml
@@ -192,12 +192,22 @@ jobs:
           GIT_CREDENTIAL="${{ secrets.GIT_TOKEN || secrets.GIT_PASSWORD }}"
           for i in {1..5}; do
             echo "Attempt $i: Cloning upload-repo..."
-            if git clone --depth=10 "https://${{ env.GIT_USERNAME }}:${GIT_CREDENTIAL}@gitea.fithwum.tech/fithwum/debian-base.git" upload-repo; then
+            if git clone --depth=10 --filter=blob:none --no-checkout "https://${{ env.GIT_USERNAME }}:${GIT_CREDENTIAL}@gitea.fithwum.tech/fithwum/debian-base.git" upload-repo; then
               break
             fi
             sleep 10
           done
 
+          if [ ! -d upload-repo ]; then
+            echo "[ERROR] Failed to clone upload repo."
+            exit 1
+          fi
+
+          cd upload-repo
+          git sparse-checkout init --cone
+          git sparse-checkout set */build-info.json */CHANGES.md
+          git checkout
+
       - name: Generate per-version changelogs
         run: |
           cd upload-repo