diff --git a/Dockerfile b/Dockerfile
index 832a983e5d..8acb27866a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:14-buster-slim
+FROM node:14-buster-slim@sha256:45e1ce1700de08f248ed342cda2ad676f6b1f71b48f9fc180fdbbd38ed84aff7
 
 WORKDIR /app