diff --git a/Dockerfile b/Dockerfile
index cfbfc6d2..e01e2ea0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,8 @@ WORKDIR /usr/src/app
 COPY package.json /usr/src/app/
 
 RUN npm install --production && \
-    npm i gritty
+    npm i gritty && \
+    npm cache clean --force
 
 COPY . /usr/src/app
 
diff --git a/Dockerfile.alpine b/Dockerfile.alpine
index c7ec3331..fa87c69e 100644
--- a/Dockerfile.alpine
+++ b/Dockerfile.alpine
@@ -10,6 +10,7 @@ RUN npm install --production && \
     apk update && \
     apk add --no-cache bash make g++ python && \
     npm i gritty && \
+    npm cache clean --force && \
     apk del make g++ python && \
     rm -rf /usr/include /tmp/* /var/cache/apk/*