diff --git a/composer.json b/composer.json
index 1f0f4e6..5be84e8 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
   },
   "require-dev": {
     "maatwebsite/excel": "^3.1.40",
-    "nunomaduro/larastan": "^2.1",
+    "nunomaduro/larastan": "2.1.*",
     "orchestra/testbench": "^7.3",
     "rap2hpoutre/fast-excel": "^3.2",
     "barryvdh/laravel-snappy": "^1.0"