diff --git a/Dockerfile b/Dockerfile
index de82c9c994614399c0df166539cc9a2893b64e31..6fb2bb54b0391ae0c1583e5c08fb3f40f8e15391 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,7 @@ LABEL name="renovate"
 
 WORKDIR /usr/src/app/
 
-RUN apk add --quiet --no-cache git openssh-client
+RUN apk add --quiet --no-cache git openssh-client ca-certificates php php-mbstring php-openssl php-zip php-zlib composer
 COPY package.json .
 COPY yarn.lock .
 RUN yarn install --production && yarn cache clean