diff --git a/composer.json b/composer.json
index eebb298..ca5015f 100644
--- a/composer.json
+++ b/composer.json
@@ -34,8 +34,8 @@
     ],
     "require": {
         "php": ">=8.1",
-        "spiral/boot": "^3.16",
-        "spiral/core": "^3.16"
+        "spiral/boot": "^3.15.1",
+        "spiral/core": "^3.15.1"
     },
     "require-dev": {
         "phpunit/phpunit": "^10.5.41",
@@ -53,7 +53,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "3.16.x-dev"
+            "dev-master": "3.15.x-dev"
         }
     },
     "config": {