diff --git a/package.json b/package.json
index 7cc524222..856e3cc87 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "pnpm-lock.yaml": "pnpm dedupe --check"
   },
   "devDependencies": {
-    "@biomejs/biome": "^1.8.3",
+    "@biomejs/biome": "^1.9.1",
     "@changesets/cli": "^2.27.8",
     "@types/fs-extra": "^11.0.4",
     "@types/node": "~18.19.39",
diff --git a/packages/plugin-dts/src/dts.ts b/packages/plugin-dts/src/dts.ts
index 53db90b8c..d30252052 100644
--- a/packages/plugin-dts/src/dts.ts
+++ b/packages/plugin-dts/src/dts.ts
@@ -135,7 +135,9 @@ export async function generateDts(data: DtsGenOptions): Promise<void> {
     if (bundle) {
       return ensureTempDeclarationDir(cwd);
     }
-    return distPath ? distPath : rawCompilerOptions.declarationDir ?? './dist';
+    return distPath
+      ? distPath
+      : (rawCompilerOptions.declarationDir ?? './dist');
   };
 
   const declarationDir = getDeclarationDir(bundle!, distPath);
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 927bce816..fea5c68d5 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -9,8 +9,8 @@ importers:
   .:
     devDependencies:
       '@biomejs/biome':
-        specifier: ^1.8.3
-        version: 1.8.3
+        specifier: ^1.9.1
+        version: 1.9.1
       '@changesets/cli':
         specifier: ^2.27.8
         version: 2.27.8
@@ -467,55 +467,55 @@ packages:
     resolution: {integrity: sha512-5F7SDGs1T72ZczbRwbGO9lQi0NLjQxzl6i4lJxLxfW9U5UluCSyEJeniWvnhl3/euNiqQVbo8zruhsDfid0esA==}
     engines: {node: '>=6.9.0'}
 
-  '@biomejs/biome@1.8.3':
-    resolution: {integrity: sha512-/uUV3MV+vyAczO+vKrPdOW0Iaet7UnJMU4bNMinggGJTAnBPjCoLEYcyYtYHNnUNYlv4xZMH6hVIQCAozq8d5w==}
+  '@biomejs/biome@1.9.1':
+    resolution: {integrity: sha512-Ps0Rg0zg3B1zpx+zQHMz5b0n0PBNCAaXttHEDTVrJD5YXR6Uj3T+abTDgeS3wsu4z5i2whqcE1lZxGyWH4bZYg==}
     engines: {node: '>=14.21.3'}
     hasBin: true
 
-  '@biomejs/cli-darwin-arm64@1.8.3':
-    resolution: {integrity: sha512-9DYOjclFpKrH/m1Oz75SSExR8VKvNSSsLnVIqdnKexj6NwmiMlKk94Wa1kZEdv6MCOHGHgyyoV57Cw8WzL5n3A==}
+  '@biomejs/cli-darwin-arm64@1.9.1':
+    resolution: {integrity: sha512-js0brHswq/BoeKgfSEUJYOjUOlML6p65Nantti+PsoQ61u9+YVGIZ7325LK7iUpDH8KVJT+Bx7K2b/6Q//W1Pw==}
     engines: {node: '>=14.21.3'}
     cpu: [arm64]
     os: [darwin]
 
-  '@biomejs/cli-darwin-x64@1.8.3':
-    resolution: {integrity: sha512-UeW44L/AtbmOF7KXLCoM+9PSgPo0IDcyEUfIoOXYeANaNXXf9mLUwV1GeF2OWjyic5zj6CnAJ9uzk2LT3v/wAw==}
+  '@biomejs/cli-darwin-x64@1.9.1':
+    resolution: {integrity: sha512-2zVyjUg5rN0k8XrytkubQWLbp2r/AS5wPhXs4vgVjvqbLnzo32EGX8p61gzroF2dH9DCUCfskdrigCGqNdEbpg==}
     engines: {node: '>=14.21.3'}
     cpu: [x64]
     os: [darwin]
 
-  '@biomejs/cli-linux-arm64-musl@1.8.3':
-    resolution: {integrity: sha512-9yjUfOFN7wrYsXt/T/gEWfvVxKlnh3yBpnScw98IF+oOeCYb5/b/+K7YNqKROV2i1DlMjg9g/EcN9wvj+NkMuQ==}
+  '@biomejs/cli-linux-arm64-musl@1.9.1':
+    resolution: {integrity: sha512-L/JmXKvhsZ1lTgqOr3tWkzuY/NRppdIscHeC9aaiR72WjnBgJS94mawl9BWmGB3aWBc0q6oSDWnBS7617EMMmA==}
     engines: {node: '>=14.21.3'}
     cpu: [arm64]
     os: [linux]
 
-  '@biomejs/cli-linux-arm64@1.8.3':
-    resolution: {integrity: sha512-fed2ji8s+I/m8upWpTJGanqiJ0rnlHOK3DdxsyVLZQ8ClY6qLuPc9uehCREBifRJLl/iJyQpHIRufLDeotsPtw==}
+  '@biomejs/cli-linux-arm64@1.9.1':
+    resolution: {integrity: sha512-QgxwfnG+r2aer5RNGR67Ey91Tv7xXW8E9YckHhwuyWjdLEvKWkrSJrhVG/6ub0kVvTSNkYOuT/7/jMOFBuUbRA==}
     engines: {node: '>=14.21.3'}
     cpu: [arm64]
     os: [linux]
 
-  '@biomejs/cli-linux-x64-musl@1.8.3':
-    resolution: {integrity: sha512-UHrGJX7PrKMKzPGoEsooKC9jXJMa28TUSMjcIlbDnIO4EAavCoVmNQaIuUSH0Ls2mpGMwUIf+aZJv657zfWWjA==}
+  '@biomejs/cli-linux-x64-musl@1.9.1':
+    resolution: {integrity: sha512-gY+eFLIAW45v3WicQHicvjRfA0ntMZHx7h937bXwBMFNFoKmB6rMi6+fKQ6/hiS6juhsFxZdZIz20m15s49J6A==}
     engines: {node: '>=14.21.3'}
     cpu: [x64]
     os: [linux]
 
-  '@biomejs/cli-linux-x64@1.8.3':
-    resolution: {integrity: sha512-I8G2QmuE1teISyT8ie1HXsjFRz9L1m5n83U1O6m30Kw+kPMPSKjag6QGUn+sXT8V+XWIZxFFBoTDEDZW2KPDDw==}
+  '@biomejs/cli-linux-x64@1.9.1':
+    resolution: {integrity: sha512-F0INygtzI2L2n2R1KtYHGr3YWDt9Up1zrUluwembM+iJ1dXN3qzlSb7deFUsSJm4FaIPriqs6Xa56ukdQW6UeQ==}
     engines: {node: '>=14.21.3'}
     cpu: [x64]
     os: [linux]
 
-  '@biomejs/cli-win32-arm64@1.8.3':
-    resolution: {integrity: sha512-J+Hu9WvrBevfy06eU1Na0lpc7uR9tibm9maHynLIoAjLZpQU3IW+OKHUtyL8p6/3pT2Ju5t5emReeIS2SAxhkQ==}
+  '@biomejs/cli-win32-arm64@1.9.1':
+    resolution: {integrity: sha512-7Jahxar3OB+aTPOgXisMJmMKMsjcK+UmdlG3UIOQjzN/ZFEsPV+GT3bfrVjZDQaCw/zes0Cqd7VTWFjFTC/+MQ==}
     engines: {node: '>=14.21.3'}
     cpu: [arm64]
     os: [win32]
 
-  '@biomejs/cli-win32-x64@1.8.3':
-    resolution: {integrity: sha512-/PJ59vA1pnQeKahemaQf4Nyj7IKUvGQSc3Ze1uIGi+Wvr1xF7rGobSrAAG01T/gUDG21vkDsZYM03NAmPiVkqg==}
+  '@biomejs/cli-win32-x64@1.9.1':
+    resolution: {integrity: sha512-liSRWjWzFhyG7s1jg/Bbv9FL+ha/CEd5tFO3+dFIJNplL4TnvAivtyfRVi/tu/pNjISbV1k9JwdBewtAKAgA0w==}
     engines: {node: '>=14.21.3'}
     cpu: [x64]
     os: [win32]
@@ -4250,39 +4250,39 @@ snapshots:
     dependencies:
       regenerator-runtime: 0.14.1
 
-  '@biomejs/biome@1.8.3':
+  '@biomejs/biome@1.9.1':
     optionalDependencies:
-      '@biomejs/cli-darwin-arm64': 1.8.3
-      '@biomejs/cli-darwin-x64': 1.8.3
-      '@biomejs/cli-linux-arm64': 1.8.3
-      '@biomejs/cli-linux-arm64-musl': 1.8.3
-      '@biomejs/cli-linux-x64': 1.8.3
-      '@biomejs/cli-linux-x64-musl': 1.8.3
-      '@biomejs/cli-win32-arm64': 1.8.3
-      '@biomejs/cli-win32-x64': 1.8.3
-
-  '@biomejs/cli-darwin-arm64@1.8.3':
+      '@biomejs/cli-darwin-arm64': 1.9.1
+      '@biomejs/cli-darwin-x64': 1.9.1
+      '@biomejs/cli-linux-arm64': 1.9.1
+      '@biomejs/cli-linux-arm64-musl': 1.9.1
+      '@biomejs/cli-linux-x64': 1.9.1
+      '@biomejs/cli-linux-x64-musl': 1.9.1
+      '@biomejs/cli-win32-arm64': 1.9.1
+      '@biomejs/cli-win32-x64': 1.9.1
+
+  '@biomejs/cli-darwin-arm64@1.9.1':
     optional: true
 
-  '@biomejs/cli-darwin-x64@1.8.3':
+  '@biomejs/cli-darwin-x64@1.9.1':
     optional: true
 
-  '@biomejs/cli-linux-arm64-musl@1.8.3':
+  '@biomejs/cli-linux-arm64-musl@1.9.1':
     optional: true
 
-  '@biomejs/cli-linux-arm64@1.8.3':
+  '@biomejs/cli-linux-arm64@1.9.1':
     optional: true
 
-  '@biomejs/cli-linux-x64-musl@1.8.3':
+  '@biomejs/cli-linux-x64-musl@1.9.1':
     optional: true
 
-  '@biomejs/cli-linux-x64@1.8.3':
+  '@biomejs/cli-linux-x64@1.9.1':
     optional: true
 
-  '@biomejs/cli-win32-arm64@1.8.3':
+  '@biomejs/cli-win32-arm64@1.9.1':
     optional: true
 
-  '@biomejs/cli-win32-x64@1.8.3':
+  '@biomejs/cli-win32-x64@1.9.1':
     optional: true
 
   '@bufbuild/protobuf@1.10.0': {}