diff --git a/Dockerfile b/Dockerfile
index d3663d6..1c0b9c5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ COPY tsconfig.json ./
 COPY src ./src
 RUN pnpm run build
 # final image
-FROM alpine:edge
+FROM alpine:3.13.1
 WORKDIR /app
 RUN apk add --no-cache \
       chromium \