diff --git a/.travis.yml b/.travis.yml
index aba1a6ec2..87335fb12 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,11 +1,16 @@
 language: node_js
 node_js:
   - '6'
-  - '5'
   - '4'
   - '0.12'
   - '0.10'
+cache:
+  directories:
+    - $HOME/.npm
+    - node_modules
 before_install:
-  - 'npm install -g npm@latest'
+  - 'node -e "process.exit(Number(process.version.match(/^v(\d+)/)[1])>=6?0:1)" || npm install -g npm@3.x-latest'
+before_script:
+  - npm prune
 after_success:
   - '[ -z "$COVERALLS_REPO_TOKEN" ] && tap --coverage-report=text-lcov | ./node_modules/.bin/coveralls'
diff --git a/appveyor.yml b/appveyor.yml
index f1ff42ccf..dffb11ecd 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,23 +1,24 @@
 environment:
   matrix:
     - nodejs_version: '6'
-    - nodejs_version: '5'
     - nodejs_version: '4'
     - nodejs_version: '0.12'
 install:
   - ps: Install-Product node $env:nodejs_version
   - set CI=true
   - set AVA_APPVEYOR=true
-  - npm install -g npm@latest || (timeout 30 && npm install -g npm@latest)
+  - npm install -g npm@3.x-latest
   - set PATH=%APPDATA%\npm;%PATH%
-  - npm install || (timeout 30 && npm install)
+  - npm install
+  - npm prune
 matrix:
   fast_finish: true
 build: off
-version: '{build}'
 shallow_clone: true
-clone_depth: 1
+cache:
+  - node_modules
+  - '%APPDATA%\npm-cache'
 test_script:
   - node --version
   - npm --version
-  - npm run test-win || (timeout 30 && npm run test-win)
+  - npm run test-win