diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bfed7eb..148fe57 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,9 +19,6 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           php-version: '7.1.27'
-      - name: Validate composer.json and composer.lock
-        run: |
-          composer validate --strict
       - name: Cache Composer packages
         id: composer-cache
         uses: actions/cache@v3
@@ -30,6 +27,7 @@ jobs:
           key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
           restore-keys: |
             ${{ runner.os }}-php-
+      - run: composer install --prefer-dist --no-progress
       - name: siftPhpTest
         run: composer exec phpunit -v