diff --git a/.drone.yml b/.drone.yml
index 9d41b43..d81e65b 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -5,7 +5,7 @@ name: default
 steps:
   # Step 1: Install dependencies and run tests
   - name: test
-    image: composer:2.0
+    image: composer:1
     commands:
       - composer install --prefer-dist --no-progress --no-interaction
       - composer validate --strict