diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index dfe1eb8e..f9779aa5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -30,6 +30,18 @@ validate:5.5:
   script:
     - bash ci/php_lint.sh ./
 
+validate:5.4:
+  image: php:5.4
+  stage: validate
+  script:
+    - bash ci/php_lint.sh ./
+
+validate:5.3:
+  image: php:5.3
+  stage: validate
+  script:
+    - bash ci/php_lint.sh ./
+
 test:7.1:
   image: php:7.1
   stage: test