diff --git a/.github/workflows/releases.yml b/.github/workflows/releases.yml
index efdc15c..14e40c4 100644
--- a/.github/workflows/releases.yml
+++ b/.github/workflows/releases.yml
@@ -34,7 +34,7 @@ jobs:
       run: composer validate
 
     - name: Install PHP dependencies
-      run: composer install --prefer-dist --no-progress --no-suggest
+      run: composer install --prefer-dist --no-progress --no-suggest --no-dev
 
     - name: Symlink Monarc modules
       run: |