diff --git a/Dockerfile b/Dockerfile
index c9d7c4958..3c2db8007 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:12.18.1-alpine3.11 as nodejs-builder
+FROM node:12.18.1-alpine3.12 as nodejs-builder
 RUN mkdir -p /src/ui
 COPY ui/package.json ui/package-lock.json /src/ui/
 RUN cd /src/ui && npm install
diff --git a/demo/Dockerfile b/demo/Dockerfile
index 51de7b611..cd3669a9c 100644
--- a/demo/Dockerfile
+++ b/demo/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:12.18.1-alpine3.11 as nodejs-builder
+FROM node:12.18.1-alpine3.12 as nodejs-builder
 RUN mkdir -p /src/ui
 COPY ui/package.json ui/package-lock.json /src/ui/
 RUN cd /src/ui && npm install