diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index af8bf52..53245ff 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -31,7 +31,7 @@ jobs:
                     coverage: pcov
 
             -   name: Install dependencies
-                run: composer install --prefer-dist --no-interaction
+                run: composer install --no-dev --prefer-dist --no-interaction
 
             -   name: Execute tests
                 run: vendor/bin/pest --coverage-clover=coverage.xml