diff --git a/Dockerfile b/Dockerfile
index a1bf0b2d..a139e92f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,7 +10,7 @@ WORKDIR /app
 RUN npm install
 RUN npm run build
 
-FROM nginx:latest
+FROM nginx:1.21
 
 RUN echo "daemon off;" >> /etc/nginx/nginx.conf
 COPY build/server.conf /etc/nginx/conf.d/default.conf