diff --git a/biome.json b/biome.json
index 856c494..4716c5c 100644
--- a/biome.json
+++ b/biome.json
@@ -1,5 +1,5 @@
 {
-	"$schema": "https://biomejs.dev/schemas/2.4.6/schema.json",
+	"$schema": "https://biomejs.dev/schemas/2.4.12/schema.json",
 	"files": {
 		"includes": ["src/**", "!src/tests/bundle"]
 	},
diff --git a/package.json b/package.json
index ab5413e..fd71a81 100644
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
     "effect": "3.x"
   },
   "devDependencies": {
-    "@biomejs/biome": "2.4.6",
+    "@biomejs/biome": "2.4.12",
     "@types/node": "25.6.0",
     "@vitest/coverage-v8": "4.1.4",
     "copyfiles": "2.4.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index d02d16c..f165bdd 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -37,8 +37,8 @@ importers:
         version: 1.2.1
     devDependencies:
       '@biomejs/biome':
-        specifier: 2.4.6
-        version: 2.4.6
+        specifier: 2.4.12
+        version: 2.4.12
       '@types/node':
         specifier: 25.6.0
         version: 25.6.0
@@ -96,59 +96,59 @@ packages:
     resolution: {integrity: sha512-6zABk/ECA/QYSCQ1NGiVwwbQerUCZ+TQbp64Q3AgmfNvurHH0j8TtXa1qbShXA6qqkpAj4V5W8pP6mLe1mcMqA==}
     engines: {node: '>=18'}
 
-  '@biomejs/biome@2.4.6':
-    resolution: {integrity: sha512-QnHe81PMslpy3mnpL8DnO2M4S4ZnYPkjlGCLWBZT/3R9M6b5daArWMMtEfP52/n174RKnwRIf3oT8+wc9ihSfQ==}
+  '@biomejs/biome@2.4.12':
+    resolution: {integrity: sha512-Rro7adQl3NLq/zJCIL98eElXKI8eEiBtoeu5TbXF/U3qbjuSc7Jb5rjUbeHHcquDWeSf3HnGP7XI5qGrlRk/pA==}
     engines: {node: '>=14.21.3'}
     hasBin: true
 
-  '@biomejs/cli-darwin-arm64@2.4.6':
-    resolution: {integrity: sha512-NW18GSyxr+8sJIqgoGwVp5Zqm4SALH4b4gftIA0n62PTuBs6G2tHlwNAOj0Vq0KKSs7Sf88VjjmHh0O36EnzrQ==}
+  '@biomejs/cli-darwin-arm64@2.4.12':
+    resolution: {integrity: sha512-BnMU4Pc3ciEVteVpZ0BK33MLr7X57F5w1dwDLDn+/iy/yTrA4Q/N2yftidFtsA4vrDh0FMXDpacNV/Tl3fbmng==}
     engines: {node: '>=14.21.3'}
     cpu: [arm64]
     os: [darwin]
 
-  '@biomejs/cli-darwin-x64@2.4.6':
-    resolution: {integrity: sha512-4uiE/9tuI7cnjtY9b07RgS7gGyYOAfIAGeVJWEfeCnAarOAS7qVmuRyX6d7JTKw28/mt+rUzMasYeZ+0R/U1Mw==}
+  '@biomejs/cli-darwin-x64@2.4.12':
+    resolution: {integrity: sha512-x9uJ0bI1rJsWICp3VH8w/5PnAVD3A7SqzDpbrfoUQX1QyWrK5jSU4fRLo/wSgGeplCivbxBRKmt5Xq4/nWvq8A==}
     engines: {node: '>=14.21.3'}
     cpu: [x64]
     os: [darwin]
 
-  '@biomejs/cli-linux-arm64-musl@2.4.6':
-    resolution: {integrity: sha512-F/JdB7eN22txiTqHM5KhIVt0jVkzZwVYrdTR1O3Y4auBOQcXxHK4dxULf4z43QyZI5tsnQJrRBHZy7wwtL+B3A==}
+  '@biomejs/cli-linux-arm64-musl@2.4.12':
+    resolution: {integrity: sha512-FhfpkAAlKL6kwvcVap0Hgp4AhZmtd3YImg0kK1jd7C/aSoh4SfsB2f++yG1rU0lr8Y5MCFJrcSkmssiL9Xnnig==}
     engines: {node: '>=14.21.3'}
     cpu: [arm64]
     os: [linux]
     libc: [musl]
 
-  '@biomejs/cli-linux-arm64@2.4.6':
-    resolution: {integrity: sha512-kMLaI7OF5GN1Q8Doymjro1P8rVEoy7BKQALNz6fiR8IC1WKduoNyteBtJlHT7ASIL0Cx2jR6VUOBIbcB1B8pew==}
+  '@biomejs/cli-linux-arm64@2.4.12':
+    resolution: {integrity: sha512-tOwuCuZZtKi1jVzbk/5nXmIsziOB6yqN8c9r9QM0EJYPU6DpQWf11uBOSCfFKKM4H3d9ZoarvlgMfbcuD051Pw==}
     engines: {node: '>=14.21.3'}
     cpu: [arm64]
     os: [linux]
     libc: [glibc]
 
-  '@biomejs/cli-linux-x64-musl@2.4.6':
-    resolution: {integrity: sha512-C9s98IPDu7DYarjlZNuzJKTjVHN03RUnmHV5htvqsx6vEUXCDSJ59DNwjKVD5XYoSS4N+BYhq3RTBAL8X6svEg==}
+  '@biomejs/cli-linux-x64-musl@2.4.12':
+    resolution: {integrity: sha512-dwTIgZrGutzhkQCuvHynCkyW6hJxUuyZqKKO0YNfaS2GUoRO+tOvxXZqZB6SkWAOdfZTzwaw8IEdUnIkHKHoew==}
     engines: {node: '>=14.21.3'}
     cpu: [x64]
     os: [linux]
     libc: [musl]
 
-  '@biomejs/cli-linux-x64@2.4.6':
-    resolution: {integrity: sha512-oHXmUFEoH8Lql1xfc3QkFLiC1hGR7qedv5eKNlC185or+o4/4HiaU7vYODAH3peRCfsuLr1g6v2fK9dFFOYdyw==}
+  '@biomejs/cli-linux-x64@2.4.12':
+    resolution: {integrity: sha512-8pFeAnLU9QdW9jCIslB/v82bI0lhBmz2ZAKc8pVMFPO0t0wAHsoEkrUQUbMkIorTRIjbqyNZHA3lEXavsPWYSw==}
     engines: {node: '>=14.21.3'}
     cpu: [x64]
     os: [linux]
     libc: [glibc]
 
-  '@biomejs/cli-win32-arm64@2.4.6':
-    resolution: {integrity: sha512-xzThn87Pf3YrOGTEODFGONmqXpTwUNxovQb72iaUOdcw8sBSY3+3WD8Hm9IhMYLnPi0n32s3L3NWU6+eSjfqFg==}
+  '@biomejs/cli-win32-arm64@2.4.12':
+    resolution: {integrity: sha512-B0DLnx0vA9ya/3v7XyCaP+/lCpnbWbMOfUFFve+xb5OxyYvdHaS55YsSddr228Y+JAFk58agCuZTsqNiw2a6ig==}
     engines: {node: '>=14.21.3'}
     cpu: [arm64]
     os: [win32]
 
-  '@biomejs/cli-win32-x64@2.4.6':
-    resolution: {integrity: sha512-7++XhnsPlr1HDbor5amovPjOH6vsrFOCdp93iKXhFn6bcMUI6soodj3WWKfgEO6JosKU1W5n3uky3WW9RlRjTg==}
+  '@biomejs/cli-win32-x64@2.4.12':
+    resolution: {integrity: sha512-yMckRzTyZ83hkk8iDFWswqSdU8tvZxspJKnYNh7JZr/zhZNOlzH13k4ecboU6MurKExCe2HUkH75pGI/O2JwGA==}
     engines: {node: '>=14.21.3'}
     cpu: [x64]
     os: [win32]
@@ -1647,39 +1647,39 @@ snapshots:
 
   '@bcoe/v8-coverage@1.0.2': {}
 
-  '@biomejs/biome@2.4.6':
+  '@biomejs/biome@2.4.12':
     optionalDependencies:
-      '@biomejs/cli-darwin-arm64': 2.4.6
-      '@biomejs/cli-darwin-x64': 2.4.6
-      '@biomejs/cli-linux-arm64': 2.4.6
-      '@biomejs/cli-linux-arm64-musl': 2.4.6
-      '@biomejs/cli-linux-x64': 2.4.6
-      '@biomejs/cli-linux-x64-musl': 2.4.6
-      '@biomejs/cli-win32-arm64': 2.4.6
-      '@biomejs/cli-win32-x64': 2.4.6
+      '@biomejs/cli-darwin-arm64': 2.4.12
+      '@biomejs/cli-darwin-x64': 2.4.12
+      '@biomejs/cli-linux-arm64': 2.4.12
+      '@biomejs/cli-linux-arm64-musl': 2.4.12
+      '@biomejs/cli-linux-x64': 2.4.12
+      '@biomejs/cli-linux-x64-musl': 2.4.12
+      '@biomejs/cli-win32-arm64': 2.4.12
+      '@biomejs/cli-win32-x64': 2.4.12
 
-  '@biomejs/cli-darwin-arm64@2.4.6':
+  '@biomejs/cli-darwin-arm64@2.4.12':
     optional: true
 
-  '@biomejs/cli-darwin-x64@2.4.6':
+  '@biomejs/cli-darwin-x64@2.4.12':
     optional: true
 
-  '@biomejs/cli-linux-arm64-musl@2.4.6':
+  '@biomejs/cli-linux-arm64-musl@2.4.12':
     optional: true
 
-  '@biomejs/cli-linux-arm64@2.4.6':
+  '@biomejs/cli-linux-arm64@2.4.12':
     optional: true
 
-  '@biomejs/cli-linux-x64-musl@2.4.6':
+  '@biomejs/cli-linux-x64-musl@2.4.12':
     optional: true
 
-  '@biomejs/cli-linux-x64@2.4.6':
+  '@biomejs/cli-linux-x64@2.4.12':
     optional: true
 
-  '@biomejs/cli-win32-arm64@2.4.6':
+  '@biomejs/cli-win32-arm64@2.4.12':
     optional: true
 
-  '@biomejs/cli-win32-x64@2.4.6':
+  '@biomejs/cli-win32-x64@2.4.12':
     optional: true
 
   '@effect/cluster@0.58.0(@effect/platform@0.96.0(effect@3.21.0))(@effect/rpc@0.75.0(@effect/platform@0.96.0(effect@3.21.0))(effect@3.21.0))(@effect/sql@0.51.0(@effect/experimental@0.60.0(@effect/platform@0.96.0(effect@3.21.0))(effect@3.21.0))(@effect/platform@0.96.0(effect@3.21.0))(effect@3.21.0))(@effect/workflow@0.18.0(@effect/experimental@0.60.0(@effect/platform@0.96.0(effect@3.21.0))(effect@3.21.0))(@effect/platform@0.96.0(effect@3.21.0))(@effect/rpc@0.75.0(@effect/platform@0.96.0(effect@3.21.0))(effect@3.21.0))(effect@3.21.0))(effect@3.21.0)':
diff --git a/src/source-maps/maybe-map-sourcemaps.test.ts b/src/source-maps/maybe-map-sourcemaps.test.ts
index dd3da6b..84ccdda 100644
--- a/src/source-maps/maybe-map-sourcemaps.test.ts
+++ b/src/source-maps/maybe-map-sourcemaps.test.ts
@@ -198,7 +198,7 @@ describe('maybeMapSourcemaps function', () => {
       expect(error.source).not.toBeUndefined();
       expect(error.source).toStrictEqual(
         expected.source!.map((d) =>
-          d.column !== undefined ? d : { code: d.code, line: d.line },
+          d.column === undefined ? { code: d.code, line: d.line } : d,
         ),
       );
     }