diff --git a/.github/workflows/alpha.yml b/.github/workflows/alpha.yml
index a4591c9e..5981d133 100644
--- a/.github/workflows/alpha.yml
+++ b/.github/workflows/alpha.yml
@@ -14,6 +14,7 @@ jobs:
     uses: ./.github/workflows/reusable-build-workflow.yml
     with:
       bundle_id: "com.SideStore.SideStore.Alpha"
+      bundle_id_suffix: ".Alpha"
       is_beta: true
       publish: true
       is_shared_build_num: false
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index ff8a31c0..ff6ef8bd 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -61,6 +61,7 @@ jobs:
     uses: ./.github/workflows/reusable-build-workflow.yml
     with:
       bundle_id: "com.SideStore.SideStore.Nightly"
+      bundle_id_suffix: ".Nightly"
       is_beta: true
       publish: true
       is_shared_build_num: false
diff --git a/.github/workflows/reusable-build-workflow.yml b/.github/workflows/reusable-build-workflow.yml
index 7e13ca80..385f2be5 100644
--- a/.github/workflows/reusable-build-workflow.yml
+++ b/.github/workflows/reusable-build-workflow.yml
@@ -30,6 +30,10 @@ on:
         default: com.SideStore.SideStore
         required: true
         type: string
+      bundle_id_suffix:
+        default: ''
+        required: false
+        type: string
 
     secrets:
     #   GITHUB_TOKEN:
@@ -217,6 +221,7 @@ jobs:
       - name: Build SideStore
         # using 'tee' to intercept stdout and log for detailed build-log
         run: |
+          echo "BUNDLE_ID_SUFFIX=${{ inputs.bundle_id_suffix }}" >> $GITHUB_ENV
           NSUnbufferedIO=YES make build 2>&1 | tee build.log | xcbeautify --renderer github-actions && exit ${PIPESTATUS[0]}
 
       - name: Fakesign app
diff --git a/update_apps.py b/update_apps.py
index b25f0e1c..8cfadcb3 100755
--- a/update_apps.py
+++ b/update_apps.py
@@ -106,7 +106,12 @@ new_version = {
     "size": SIZE,
     "sha256": SHA256,
 }
-versions.insert(0, new_version)
+
+if versions is []:
+    versions.append(new_version)
+else:
+    # versions.insert(0, new_version)     # insert at front
+    versions[0] = new_version             # replace top one
 
 # Save the updated JSON to the input file
 try: