diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index eca3827b05cb760075f23040a340e13f6b08960d..de832edcd5b576aeaabd8f13451ef5d71e524aab 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -66,7 +66,7 @@ prepare_node:
     
 prepare_composer:
   stage: prepare
-  image: composer/composer:latest
+  image: prooph/composer:7.3
   script:
     - composer install
   artifacts: