diff --git a/Dockerfile.api b/Dockerfile.api
index 063628e..6f8b8a6 100644
--- a/Dockerfile.api
+++ b/Dockerfile.api
@@ -32,7 +32,7 @@ RUN go install -tags 'postgres' github.com/golang-migrate/migrate/v4/cmd/migrate
 # ================================
 # 阶段 2: 运行阶段
 # ================================
-FROM alpine:latest
+FROM alpine:3.19
 
 # 安装运行时依赖
 RUN apk add --no-cache ca-certificates tzdata bash curl
diff --git a/Dockerfile.worker b/Dockerfile.worker
index 1ad240e..acb3a57 100644
--- a/Dockerfile.worker
+++ b/Dockerfile.worker
@@ -29,7 +29,7 @@ RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build \
 # ================================
 # 阶段 2: 运行阶段
 # ================================
-FROM alpine:latest
+FROM alpine:3.19
 
 # 安装运行时依赖
 RUN apk add --no-cache ca-certificates tzdata bash