diff --git a/Dockerfile b/Dockerfile
index 832a983e5d..4468e2199d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:14-buster-slim
+FROM node:14-buster-slim@sha256:798c9ee598403c90de6c50264dd37494b842d1441b34e42fb11175a1e01815a2
 
 WORKDIR /app