diff --git a/.circleci/config.yml b/.circleci/config.yml
index 5e1840b0fc71de706a49e145186b5702d6737f01..e37f339c834aef90ff839b76981071fa677445e5 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -68,7 +68,7 @@ jobs:
       - image: amd64/node:10.16.0@sha256:7af3328e235a92c949e0b7c3c738b4c3d05ceb82306fddbe75136f2e7842e6f4
     steps:
       - checkout
-      - run: yarn install
+      - run: yarn install --frozen-lockfile
       - run: yarn build
       - run: yarn semantic-release
       - run: curl -X POST -d '{}' $NETLIFY_DEPLOY_WEBHOOK
diff --git a/Dockerfile b/Dockerfile
index 114762c0b5b0c8bc690da843af7d1b73c27b982f..4259c66af51774ef824032d2ea2430544b996e69 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM amd64/node:10.16.0-alpine@sha256:f59303fb3248e5d992586c76cc83e1d3700f641cbc
 
 COPY package.json .
 COPY yarn.lock .
-RUN yarn install
+RUN yarn install --frozen-lockfile
 
 COPY lib lib
 COPY tsconfig.json tsconfig.json