diff --git a/package.json b/package.json
index aada904..a9c523b 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "ora": "^9.1.0"
   },
   "devDependencies": {
-    "@eslint/js": "9.39.4",
+    "@eslint/js": "10.0.1",
     "@types/node": "^25.2.0",
     "eslint": "^10.2.1",
     "prettier": "^3.4.2",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index b45813d..28d14ca 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -19,8 +19,8 @@ importers:
         version: 9.4.0
     devDependencies:
       '@eslint/js':
-        specifier: 9.39.4
-        version: 9.39.4
+        specifier: 10.0.1
+        version: 10.0.1(eslint@10.2.1)
       '@types/node':
         specifier: ^25.2.0
         version: 25.6.0
@@ -379,9 +379,14 @@ packages:
     resolution: {integrity: sha512-MwcE1P+AZ4C6DWlpin/OmOA54mmIZ/+xZuJiQd4SyB29oAJjN30UW9wkKNptW2ctp4cEsvhlLY/CsQ1uoHDloQ==}
     engines: {node: ^20.19.0 || ^22.13.0 || >=24}
 
-  '@eslint/js@9.39.4':
-    resolution: {integrity: sha512-nE7DEIchvtiFTwBw4Lfbu59PG+kCofhjsKaCWzxTpt4lfRjRMqG6uMBzKXuEcyXhOHoUp9riAm7/aWYGhXZ9cw==}
-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+  '@eslint/js@10.0.1':
+    resolution: {integrity: sha512-zeR9k5pd4gxjZ0abRoIaxdc7I3nDktoXZk2qOv9gCNWx3mVwEn32VRhyLaRsDiJjTs0xq/T8mfPtyuXu7GWBcA==}
+    engines: {node: ^20.19.0 || ^22.13.0 || >=24}
+    peerDependencies:
+      eslint: ^10.0.0
+    peerDependenciesMeta:
+      eslint:
+        optional: true
 
   '@eslint/object-schema@3.0.5':
     resolution: {integrity: sha512-vqTaUEgxzm+YDSdElad6PiRoX4t8VGDjCtt05zn4nU810UIx/uNEV7/lZJ6KwFThKZOzOxzXy48da+No7HZaMw==}
@@ -1622,7 +1627,9 @@ snapshots:
     dependencies:
       '@types/json-schema': 7.0.15
 
-  '@eslint/js@9.39.4': {}
+  '@eslint/js@10.0.1(eslint@10.2.1)':
+    optionalDependencies:
+      eslint: 10.2.1
 
   '@eslint/object-schema@3.0.5': {}
 
diff --git a/src/upload.ts b/src/upload.ts
index 021bbbb..13d5352 100644
--- a/src/upload.ts
+++ b/src/upload.ts
@@ -50,10 +50,11 @@ export async function uploadReport(
   } catch (err) {
     clearTimeout(timer);
     if (err instanceof DOMException && err.name === 'AbortError') {
-      throw new Error(`Upload timed out after ${timeout}ms.`);
+      throw new Error(`Upload timed out after ${timeout}ms.`, { cause: err });
     }
     throw new Error(
-      `Upload failed: ${err instanceof Error ? err.message : 'Unknown network error'}`
+      `Upload failed: ${err instanceof Error ? err.message : 'Unknown network error'}`,
+      { cause: err }
     );
   } finally {
     clearTimeout(timer);