diff --git a/packages/adapter-node/package.json b/packages/adapter-node/package.json
index 7ccefd994857..b3583e56e28f 100644
--- a/packages/adapter-node/package.json
+++ b/packages/adapter-node/package.json
@@ -37,7 +37,7 @@
 		"@sveltejs/kit": "workspace:^",
 		"@sveltejs/vite-plugin-svelte": "^3.0.1",
 		"@types/node": "^18.19.3",
-		"c8": "^8.0.1",
+		"c8": "^9.0.0",
 		"polka": "1.0.0-next.24",
 		"sirv": "^2.0.4",
 		"typescript": "^5.3.3",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 431ca8a2ad10..3d818c36c6c2 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -191,8 +191,8 @@ importers:
         specifier: ^18.19.3
         version: 18.19.3
       c8:
-        specifier: ^8.0.1
-        version: 8.0.1
+        specifier: ^9.0.0
+        version: 9.0.0
       polka:
         specifier: 1.0.0-next.24
         version: 1.0.0-next.24
@@ -2851,19 +2851,18 @@ packages:
     resolution: {integrity: sha512-zhaCDicdLuWN5UbN5IMnFqNMhNfo919sH85y2/ea+5Yg9TsTkeZxpL+JLbp6cgYFS4sRLp3YV4S6yDuqVWHYOw==}
     engines: {node: '>=6'}
 
-  /c8@8.0.1:
-    resolution: {integrity: sha512-EINpopxZNH1mETuI0DzRA4MZpAUH+IFiRhnmFD3vFr3vdrgxqi3VfE3KL0AIL+zDq8rC9bZqwM/VDmmoe04y7w==}
-    engines: {node: '>=12'}
+  /c8@9.0.0:
+    resolution: {integrity: sha512-nFJhU2Cz6Frh2awk3IW7wwk3wx27/U2v8ojQCHGc1GWTCHS6aMu4lal327/ZnnYj7oSThGF1X3qUP1yzAJBcOQ==}
+    engines: {node: '>=14.14.0'}
     hasBin: true
     dependencies:
       '@bcoe/v8-coverage': 0.2.3
       '@istanbuljs/schema': 0.1.3
       find-up: 5.0.0
-      foreground-child: 2.0.0
+      foreground-child: 3.1.1
       istanbul-lib-coverage: 3.2.2
       istanbul-lib-report: 3.0.1
       istanbul-reports: 3.1.6
-      rimraf: 3.0.2
       test-exclude: 6.0.0
       v8-to-istanbul: 9.2.0
       yargs: 17.7.2
@@ -3779,12 +3778,12 @@ packages:
       is-callable: 1.2.7
     dev: true
 
-  /foreground-child@2.0.0:
-    resolution: {integrity: sha512-dCIq9FpEcyQyXKCkyzmlPTFNgrCzPudOe+mhvJU5zAtlBnGVy2yKxtfsxK2tQBThwq225jcvBjpw1Gr40uzZCA==}
-    engines: {node: '>=8.0.0'}
+  /foreground-child@3.1.1:
+    resolution: {integrity: sha512-TMKDUnIte6bfb5nWv7V/caI169OHgvwjb7V4WkeUvbQQdjr5rWKqHFiKWb/fcOwB+CzBT+qbWjvj+DVwRskpIg==}
+    engines: {node: '>=14'}
     dependencies:
       cross-spawn: 7.0.3
-      signal-exit: 3.0.7
+      signal-exit: 4.1.0
     dev: true
 
   /fs-extra@7.0.1: