diff --git a/package.json b/package.json
index d5ec49f..89a7c09 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
         "globals": "^16.5.0",
         "msw": "^2.12.4",
         "prettier": "^3.7.4",
-        "tsdown": "^0.17.3",
+        "tsdown": "^0.18.0",
         "tslib": "^2.8.1",
         "typescript": "^5.9.3",
         "typescript-eslint": "^8.49.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index fe478c6..dbef9b1 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -27,8 +27,8 @@ importers:
         specifier: ^3.7.4
         version: 3.7.4
       tsdown:
-        specifier: ^0.17.3
-        version: 0.17.4(typescript@5.9.3)
+        specifier: ^0.18.0
+        version: 0.18.0(typescript@5.9.3)
       tslib:
         specifier: ^2.8.1
         version: 2.8.1
@@ -1233,8 +1233,8 @@ packages:
     peerDependencies:
       typescript: '>=4.8.4'
 
-  tsdown@0.17.4:
-    resolution: {integrity: sha512-z+kNuv1rwM1POQIufDUVrdNc/uGy0ueRVafCyDH39IdHxin4JXgB8DNGSPoqdIpcOpqUoRbNreK8NxENFmlhKw==}
+  tsdown@0.18.0:
+    resolution: {integrity: sha512-Yotdh3NzizysnqR96xfpHFYtEntk1cZvSRHz8A+Pn3ZHNdTQa4fBQxh6HHzWZwfjdQv47xb7GCv6vEWMtxBirw==}
     engines: {node: '>=20.19.0'}
     hasBin: true
     peerDependencies:
@@ -2493,7 +2493,7 @@ snapshots:
     dependencies:
       typescript: 5.9.3
 
-  tsdown@0.17.4(typescript@5.9.3):
+  tsdown@0.18.0(typescript@5.9.3):
     dependencies:
       ansis: 4.2.0
       cac: 6.7.14