diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index 7cb4ea0..456d241 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -54,7 +54,8 @@ jobs:
             type=semver,pattern={{version}}
             type=semver,pattern={{major}}.{{minor}}
             type=sha,prefix=sha-
-            type=raw,value=latest,enable=${{ github.event_name != 'pull_request' && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/v')) }}
+            type=raw,value=latest,enable=${{ startsWith(github.ref, 'refs/tags/v') }}
+            type=raw,value=stable,enable=${{ startsWith(github.ref, 'refs/tags/v') }}
 
       - name: Determine image version
         id: version
@@ -63,7 +64,7 @@ jobs:
           if [[ "$GITHUB_REF" == refs/tags/v* ]]; then
             version="$GITHUB_REF_NAME"
           else
-            version="$(git describe --tags --abbrev=0 2>/dev/null || git rev-parse --short=12 HEAD)"
+            version="$(git describe --tags --always --dirty 2>/dev/null || git rev-parse --short=12 HEAD)"
           fi
           echo "version=$version" >> "$GITHUB_OUTPUT"
 
diff --git a/README.md b/README.md
index 1f34f15..7db91b0 100644
--- a/README.md
+++ b/README.md
@@ -113,7 +113,7 @@ mkdir -p video-site-91 && cd video-site-91
 ```yaml
 services:
   video-site-91:
-    image: ghcr.io/nianzhibai/91:latest
+    image: ghcr.io/nianzhibai/91:stable
     container_name: video-site-91
     ports:
       - "9191:9191"
@@ -122,6 +122,20 @@ services:
     restart: unless-stopped
 ```
 
+`stable` 只会在发布 `v*` 正式 Release 时更新，不会跟随 `main` 分支开发镜像变化。
+升级到最新正式版：
+
+```bash
+docker compose pull
+docker compose up -d
+```
+
+如果想固定某个 Release 版本，可以改成明确的 tag，例如：
+
+```yaml
+image: ghcr.io/nianzhibai/91:v0.0.4
+```
+
 或直接拉取仓库内置配置：
 
 ```bash
@@ -138,7 +152,7 @@ docker compose up -d
 
 ```bash
 docker compose logs -f       # 查看日志
-docker compose pull          # 拉取最新镜像
+docker compose pull          # 拉取最新正式版 stable 镜像
 docker compose up -d         # 更新并重启
 ```
 
diff --git a/docker-compose.yml b/docker-compose.yml
index 3d5b7af..7db2494 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,6 +1,6 @@
 services:
   video-site-91:
-    image: ghcr.io/nianzhibai/91:latest
+    image: ghcr.io/nianzhibai/91:stable
     container_name: video-site-91
     ports:
       - "9191:9191"