diff --git a/.travis.yml b/.travis.yml
index ecadbd6..a8a45d1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,4 +18,4 @@ addons:
 install:
   - export DISPLAY=':99.0'
   - Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
-  - npm install
+  - npm ci || npm i
diff --git a/appveyor.yml b/appveyor.yml
index 3794b22..e19f81a 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -14,7 +14,7 @@ environment:
 
 install:
   - ps: Install-Product node $env:nodejs_version
-  - npm install
+  - npm ci
 
 test_script:
   - node --version && npm --version