diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..2fd9860
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,6 @@
+**
+
+!Dockerfile
+!package.json
+!yarn.lock
+!packages/
diff --git a/Dockerfile b/Dockerfile
index 7da4efa..7d5d3a5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,7 @@ ENV NODE_ENV=production
 # build gitmoji-changelog from source
 COPY . /usr/src/gitmoji-changelog
 WORKDIR /usr/src/gitmoji-changelog
-RUN yarn --frozen-lockfile
+RUN yarn --frozen-lockfile && yarn cache clean
 
 # run gitmoji-changelog on /usr/src/app
 ENTRYPOINT ["/usr/src/gitmoji-changelog/node_modules/.bin/gitmoji-changelog"]