diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index 4b2df00..819baf4 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -38,6 +38,7 @@ jobs:
           # 取提交备注首行，脱去换行/双引号/反斜杠（避免破坏 webhook JSON），截断到 200 字符
           COMMIT_MSG=$(git log -1 --pretty=%s | tr '\n' ' ' | sed 's/["\\]/ /g' | cut -c1-200)
           echo "COMMIT_MSG=${COMMIT_MSG}" >> "$GITHUB_ENV"
+          echo "MB=$(echo ${GITHUB_SHA} | cut -c1-6)" >> "$GITHUB_ENV"
 
       # 可选：清空 m2 缓存（仅手动勾选 cache_bust 时）
       - name: 可选清空 m2 缓存
@@ -55,18 +56,18 @@ jobs:
       - name: 构建 jar（maven 容器，复用宿主 m2 缓存）
         run: |
           set -e
-          docker rm -f mavenbuild 2>/dev/null || true
-          docker run -d --name mavenbuild \
+          docker rm -f mavenbuild-${MB} 2>/dev/null || true
+          docker run -d --name mavenbuild-${MB} \
             --network infra-infra-net \
             -v /opt/docker/projman-m2:/root/.m2 \
             -w /build maven:3.6.3-jdk-8 sleep 3600
-          docker cp "${PWD}/." mavenbuild:/build/
-          docker exec mavenbuild sh -c "printf '%s' '<settings><profiles><profile><id>nexus-repo</id><repositories><repository><id>nexus-internal</id><url>http://nexus:8081/repository/maven-public/</url><releases><enabled>true</enabled></releases><snapshots><enabled>true</enabled><updatePolicy>always</updatePolicy></snapshots></repository></repositories></profile></profiles><activeProfiles><activeProfile>nexus-repo</activeProfile></activeProfiles></settings>' > /root/.m2/settings.xml"
-          docker exec mavenbuild sh -c 'cd /build && mvn -B -DskipTests clean package'
-          docker exec mavenbuild sh -c 'cd /build/target && cp *.jar app.jar'
+          docker cp "${PWD}/." mavenbuild-${MB}:/build/
+          docker exec mavenbuild-${MB} sh -c "printf '%s' '<settings><profiles><profile><id>nexus-repo</id><repositories><repository><id>nexus-internal</id><url>http://nexus:8081/repository/maven-public/</url><releases><enabled>true</enabled></releases><snapshots><enabled>true</enabled><updatePolicy>always</updatePolicy></snapshots></repository></repositories></profile></profiles><activeProfiles><activeProfile>nexus-repo</activeProfile></activeProfiles></settings>' > /root/.m2/settings.xml"
+          docker exec mavenbuild-${MB} sh -c 'cd /build && mvn -B -DskipTests clean package'
+          docker exec mavenbuild-${MB} sh -c 'cd /build/target && cp *.jar app.jar'
           mkdir -p "${PWD}/target"
-          docker cp mavenbuild:/build/target/app.jar "${PWD}/target/app.jar"
-          docker rm -f mavenbuild
+          docker cp mavenbuild-${MB}:/build/target/app.jar "${PWD}/target/app.jar"
+          docker rm -f mavenbuild-${MB}
 
       - name: 构建并推送镜像
         run: |