diff --git a/packages/kit/package.json b/packages/kit/package.json
index 30ba2e3c54..7b01d3ed71 100644
--- a/packages/kit/package.json
+++ b/packages/kit/package.json
@@ -27,7 +27,7 @@
     "test:attw": "attw --pack"
   },
   "dependencies": {
-    "c12": "^3.0.2",
+    "c12": "^2.0.4",
     "consola": "^3.4.0",
     "defu": "^6.1.4",
     "destr": "^2.0.3",
diff --git a/packages/nuxt/package.json b/packages/nuxt/package.json
index b607d27b09..68a0a02420 100644
--- a/packages/nuxt/package.json
+++ b/packages/nuxt/package.json
@@ -81,8 +81,8 @@
     "@unhead/ssr": "^1.11.20",
     "@unhead/vue": "^1.11.20",
     "@vue/shared": "^3.5.13",
-    "acorn": "8.14.0",
-    "c12": "^3.0.2",
+    "acorn": "^8.14.0",
+    "c12": "^2.0.4",
     "chokidar": "^4.0.3",
     "compatx": "^0.1.8",
     "consola": "^3.4.0",
diff --git a/packages/schema/package.json b/packages/schema/package.json
index d8a0f7fab3..6d1fc05c5f 100644
--- a/packages/schema/package.json
+++ b/packages/schema/package.json
@@ -45,7 +45,7 @@
     "@vue/compiler-core": "3.5.13",
     "@vue/compiler-sfc": "3.5.13",
     "@vue/language-core": "2.2.4",
-    "c12": "3.0.2",
+    "c12": "2.0.4",
     "chokidar": "4.0.3",
     "compatx": "0.1.8",
     "css-minimizer-webpack-plugin": "7.0.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 83049033ef..82cb9f7bbc 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -230,8 +230,8 @@ importers:
   packages/kit:
     dependencies:
       c12:
-        specifier: ^3.0.2
-        version: 3.0.2(magicast@0.3.5)
+        specifier: ^2.0.4
+        version: 2.0.4(magicast@0.3.5)
       consola:
         specifier: ^3.4.0
         version: 3.4.0
@@ -366,11 +366,11 @@ importers:
         specifier: 3.5.13
         version: 3.5.13
       acorn:
-        specifier: 8.14.0
+        specifier: ^8.14.0
         version: 8.14.0
       c12:
-        specifier: ^3.0.2
-        version: 3.0.2(magicast@0.3.5)
+        specifier: ^2.0.4
+        version: 2.0.4(magicast@0.3.5)
       chokidar:
         specifier: ^4.0.3
         version: 4.0.3
@@ -738,8 +738,8 @@ importers:
         specifier: 2.2.4
         version: 2.2.4(typescript@5.7.3)
       c12:
-        specifier: 3.0.2
-        version: 3.0.2(magicast@0.3.5)
+        specifier: 2.0.4
+        version: 2.0.4(magicast@0.3.5)
       chokidar:
         specifier: 4.0.3
         version: 4.0.3
@@ -3523,14 +3523,6 @@ packages:
       magicast:
         optional: true
 
-  c12@3.0.2:
-    resolution: {integrity: sha512-6Tzk1/TNeI3WBPpK0j/Ss4+gPj3PUJYbWl/MWDJBThFvwNGNkXtd7Cz8BJtD4aRwoGHtzQD0SnxamgUiBH0/Nw==}
-    peerDependencies:
-      magicast: ^0.3.5
-    peerDependenciesMeta:
-      magicast:
-        optional: true
-
   cac@6.7.14:
     resolution: {integrity: sha512-b6Ilus+c3RrdDk+JhLKUAQfzzgLEPy6wcXqS7f/xe1EETvsDP6GORG7SFuOs6cID5YkqchW/LXZbX5bc8j7ZcQ==}
     engines: {node: '>=8'}
@@ -10582,23 +10574,6 @@ snapshots:
     optionalDependencies:
       magicast: 0.3.5
 
-  c12@3.0.2(magicast@0.3.5):
-    dependencies:
-      chokidar: 4.0.3
-      confbox: 0.1.8
-      defu: 6.1.4
-      dotenv: 16.4.7
-      exsolve: 1.0.1
-      giget: 2.0.0
-      jiti: 2.4.2
-      ohash: 2.0.6
-      pathe: 2.0.3
-      perfect-debounce: 1.0.0
-      pkg-types: 2.0.0
-      rc9: 2.1.2
-    optionalDependencies:
-      magicast: 0.3.5
-
   cac@6.7.14: {}
 
   call-bind@1.0.7: