diff --git a/Dockerfile b/Dockerfile
index 7e55389..111cddf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -30,9 +30,9 @@ RUN set -ex; \
     rm -rf /var/lib/apt/lists/*;
 
 RUN mkdir -p /usr/src/app
-COPY package.json /usr/src/app
+COPY package* /usr/src/app/
 
-RUN cd /usr/src/app && npm install --production
+RUN cd /usr/src/app && npm install --omit=dev
 
 FROM ubuntu:focal AS final
 
diff --git a/Dockerfile_light b/Dockerfile_light
index c6c7421..2ce1312 100644
--- a/Dockerfile_light
+++ b/Dockerfile_light
@@ -27,6 +27,6 @@ ENTRYPOINT ["/usr/src/app/docker-entrypoint.sh"]
 
 RUN mkdir -p /usr/src/app
 COPY / /usr/src/app
-RUN cd /usr/src/app && npm install --production
+RUN cd /usr/src/app && npm install --omit=dev
 RUN ["chmod", "+x", "/usr/src/app/docker-entrypoint.sh"]
 USER node:node