diff --git a/.github/workflows/docker-image-arm64.yml b/.github/workflows/docker-image-arm64.yml
index 78517af0e..50630856b 100644
--- a/.github/workflows/docker-image-arm64.yml
+++ b/.github/workflows/docker-image-arm64.yml
@@ -4,6 +4,12 @@ on:
   push:
     tags:
       - '*'
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Tag name to build (e.g., v0.10.8-alpha.3)'
+        required: true
+        type: string
 
 jobs:
   build_single_arch:
@@ -33,7 +39,11 @@ jobs:
       - name: Resolve tag & write VERSION
         run: |
           git fetch --tags --force --depth=1
-          TAG=${GITHUB_REF#refs/tags/}
+          if [ -n "${{ github.event.inputs.tag }}" ]; then
+            TAG="${{ github.event.inputs.tag }}"
+          else
+            TAG=${GITHUB_REF#refs/tags/}
+          fi
           echo "TAG=$TAG" >> $GITHUB_ENV
           echo "$TAG" > VERSION
           echo "Building tag: $TAG for ${{ matrix.arch }}"
@@ -87,10 +97,15 @@ jobs:
     name: Create multi-arch manifests (Docker Hub)
     needs: [build_single_arch]
     runs-on: ubuntu-latest
-    if: startsWith(github.ref, 'refs/tags/')
+    if: startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
     steps:
       - name: Extract tag
-        run: echo "TAG=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
+        run: |
+          if [ -n "${{ github.event.inputs.tag }}" ]; then
+            echo "TAG=${{ github.event.inputs.tag }}" >> $GITHUB_ENV
+          else
+            echo "TAG=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
+          fi
 #
 #      - name: Normalize GHCR repository
 #        run: echo "GHCR_REPOSITORY=${GITHUB_REPOSITORY,,}" >> $GITHUB_ENV