diff --git a/composer.json b/composer.json
index 278ea854..29afb6f2 100644
--- a/composer.json
+++ b/composer.json
@@ -19,13 +19,13 @@
         }
     ],
     "require": {
-        "silverstripe/admin": "^1.12@dev",
-        "silverstripe/campaign-admin": "^1.7@dev",
-        "silverstripe/framework": "^4.11",
-        "silverstripe/reports": "^4.7@dev",
-        "silverstripe/siteconfig": "^4.7@dev",
-        "silverstripe/versioned": "^1.7@dev",
-        "silverstripe/versioned-admin": "^1.7@dev",
+        "silverstripe/admin": "1.13.x-dev",
+        "silverstripe/campaign-admin": "1.13.x-dev",
+        "silverstripe/framework": "4.13.x-dev",
+        "silverstripe/reports": "4.13.x-dev",
+        "silverstripe/siteconfig": "4.13.x-dev",
+        "silverstripe/versioned": "1.13.x-dev",
+        "silverstripe/versioned-admin": "1.13.x-dev",
         "silverstripe/vendor-plugin": "^1.0",
         "php": "^7.4 || ^8.0"
     },
@@ -45,11 +45,14 @@
     },
     "autoload": {
         "psr-4": {
-            "SilverStripe\\CMS\\": ["code/", "_legacy/"],
+            "SilverStripe\\CMS\\": [
+                "code/",
+                "_legacy/"
+            ],
             "SilverStripe\\CMS\\Tests\\": "code/php/",
             "SilverStripe\\CMS\\Tests\\Behaviour\\": "tests/behat/src/"
         }
     },
     "prefer-stable": true,
     "minimum-stability": "dev"
-}
+}
\ No newline at end of file