diff --git a/composer.json b/composer.json
index cadb3d24a48e6ddfd0314fcab96f04d9f3ea4438..394300d10680ebde1cac09447a64f00784c997d4 100644
--- a/composer.json
+++ b/composer.json
@@ -123,7 +123,7 @@
         "wpackagist-plugin/two-factor-provider-webauthn": "1.0.3",
         "wpackagist-plugin/event-organiser": "3.12.0",
         "noblogs/ai-authenticate-rest-api-plugin": "0.0.1",
-        "wpackagist-plugin/multisite-custom-css": "^1.0"
+        "wpackagist-plugin/multisite-custom-css": "1.0"
     },    
     "extra": {
         "wordpress-install-dir": "app",
diff --git a/composer.lock b/composer.lock
index 8b6f1aea8c5b8fcf2adf39db625c76a2804ccbf8..4567a3648751f3e2d9249755072a4b1f36c4630c 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "e1a154d4f387ceb6c0615faf5aa84476",
+    "content-hash": "bdda8dc215c0b695e1498e1074edd6b0",
     "packages": [
         {
             "name": "bjornjohansen/wplang",
@@ -2186,5 +2186,5 @@
         "php": ">=7.1"
     },
     "platform-dev": [],
-    "plugin-api-version": "2.0.0"
+    "plugin-api-version": "2.3.0"
 }