diff --git a/composer.json b/composer.json
index 0f7702a41446e17a50d1c2e8f4e6988c293fca50..8f4fb1bb1284ef163e772d4fae1ac5a83da9b885 100755
--- a/composer.json
+++ b/composer.json
@@ -35,7 +35,7 @@
         "slim/slim": "^3.10",
         "respect/validation": "^1.1",
         "php-http/curl-client": "^1.7",
-        "m4tthumphrey/php-gitlab-api": "9.5",
+        "m4tthumphrey/php-gitlab-api": "8",
         "jumbojett/openid-connect-php": "^0.3.0",
         "zf1/zend-search-lucene": "~1.12",
         "setasign/fpdi-tcpdf": "^2.0.0",