diff --git a/Dockerfile b/Dockerfile
index 9d56d71..f25210c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,10 @@
-FROM node:12.16.1-alpine3.11
+FROM node:14.15.1-alpine3.12
 
 WORKDIR /lint
 COPY package.json package-lock.json .remarkrc.yaml ./
 RUN npm install \
     && npm link remark-cli \
-    && apk add --no-cache git~=2.24
+    && apk add --no-cache git~=2.26
 
 WORKDIR /lint/input
 ENTRYPOINT ["/usr/local/bin/remark"]