diff --git a/package.json b/package.json
index 115298467d..896d155bf7 100644
--- a/package.json
+++ b/package.json
@@ -87,7 +87,7 @@
     "@rescript/win32-x64": "workspace:packages/@rescript/win32-x64"
   },
   "devDependencies": {
-    "@biomejs/biome": "2.4.10",
+    "@biomejs/biome": "2.4.12",
     "@types/node": "^25.0.3",
     "@types/semver": "^7.7.0",
     "@yarnpkg/types": "^4.0.1",
diff --git a/yarn.lock b/yarn.lock
index 84954c68b2..736cc1f50d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -180,18 +180,18 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@biomejs/biome@npm:2.4.10":
-  version: 2.4.10
-  resolution: "@biomejs/biome@npm:2.4.10"
-  dependencies:
-    "@biomejs/cli-darwin-arm64": "npm:2.4.10"
-    "@biomejs/cli-darwin-x64": "npm:2.4.10"
-    "@biomejs/cli-linux-arm64": "npm:2.4.10"
-    "@biomejs/cli-linux-arm64-musl": "npm:2.4.10"
-    "@biomejs/cli-linux-x64": "npm:2.4.10"
-    "@biomejs/cli-linux-x64-musl": "npm:2.4.10"
-    "@biomejs/cli-win32-arm64": "npm:2.4.10"
-    "@biomejs/cli-win32-x64": "npm:2.4.10"
+"@biomejs/biome@npm:2.4.12":
+  version: 2.4.12
+  resolution: "@biomejs/biome@npm:2.4.12"
+  dependencies:
+    "@biomejs/cli-darwin-arm64": "npm:2.4.12"
+    "@biomejs/cli-darwin-x64": "npm:2.4.12"
+    "@biomejs/cli-linux-arm64": "npm:2.4.12"
+    "@biomejs/cli-linux-arm64-musl": "npm:2.4.12"
+    "@biomejs/cli-linux-x64": "npm:2.4.12"
+    "@biomejs/cli-linux-x64-musl": "npm:2.4.12"
+    "@biomejs/cli-win32-arm64": "npm:2.4.12"
+    "@biomejs/cli-win32-x64": "npm:2.4.12"
   dependenciesMeta:
     "@biomejs/cli-darwin-arm64":
       optional: true
@@ -211,62 +211,62 @@ __metadata:
       optional: true
   bin:
     biome: bin/biome
-  checksum: 10c0/80d10d5e6fa41a24efb9020ee73b79b0aca46942b55ea96e880c3bb45ea14c71e49fb1be9f134bee23b2d940bb8cad51a70351ca051e09a43613018dba693bd6
+  checksum: 10c0/8f03b07f33d7e1efee615945cdc907b7fdc9160d70b204a74ce1b65bdf0ca47c7bfe5e2fafd5b832927f0d4bee4ae3182d93e603e3e5ecf5d91734cff888133b
   languageName: node
   linkType: hard
 
-"@biomejs/cli-darwin-arm64@npm:2.4.10":
-  version: 2.4.10
-  resolution: "@biomejs/cli-darwin-arm64@npm:2.4.10"
+"@biomejs/cli-darwin-arm64@npm:2.4.12":
+  version: 2.4.12
+  resolution: "@biomejs/cli-darwin-arm64@npm:2.4.12"
   conditions: os=darwin & cpu=arm64
   languageName: node
   linkType: hard
 
-"@biomejs/cli-darwin-x64@npm:2.4.10":
-  version: 2.4.10
-  resolution: "@biomejs/cli-darwin-x64@npm:2.4.10"
+"@biomejs/cli-darwin-x64@npm:2.4.12":
+  version: 2.4.12
+  resolution: "@biomejs/cli-darwin-x64@npm:2.4.12"
   conditions: os=darwin & cpu=x64
   languageName: node
   linkType: hard
 
-"@biomejs/cli-linux-arm64-musl@npm:2.4.10":
-  version: 2.4.10
-  resolution: "@biomejs/cli-linux-arm64-musl@npm:2.4.10"
+"@biomejs/cli-linux-arm64-musl@npm:2.4.12":
+  version: 2.4.12
+  resolution: "@biomejs/cli-linux-arm64-musl@npm:2.4.12"
   conditions: os=linux & cpu=arm64 & libc=musl
   languageName: node
   linkType: hard
 
-"@biomejs/cli-linux-arm64@npm:2.4.10":
-  version: 2.4.10
-  resolution: "@biomejs/cli-linux-arm64@npm:2.4.10"
+"@biomejs/cli-linux-arm64@npm:2.4.12":
+  version: 2.4.12
+  resolution: "@biomejs/cli-linux-arm64@npm:2.4.12"
   conditions: os=linux & cpu=arm64 & libc=glibc
   languageName: node
   linkType: hard
 
-"@biomejs/cli-linux-x64-musl@npm:2.4.10":
-  version: 2.4.10
-  resolution: "@biomejs/cli-linux-x64-musl@npm:2.4.10"
+"@biomejs/cli-linux-x64-musl@npm:2.4.12":
+  version: 2.4.12
+  resolution: "@biomejs/cli-linux-x64-musl@npm:2.4.12"
   conditions: os=linux & cpu=x64 & libc=musl
   languageName: node
   linkType: hard
 
-"@biomejs/cli-linux-x64@npm:2.4.10":
-  version: 2.4.10
-  resolution: "@biomejs/cli-linux-x64@npm:2.4.10"
+"@biomejs/cli-linux-x64@npm:2.4.12":
+  version: 2.4.12
+  resolution: "@biomejs/cli-linux-x64@npm:2.4.12"
   conditions: os=linux & cpu=x64 & libc=glibc
   languageName: node
   linkType: hard
 
-"@biomejs/cli-win32-arm64@npm:2.4.10":
-  version: 2.4.10
-  resolution: "@biomejs/cli-win32-arm64@npm:2.4.10"
+"@biomejs/cli-win32-arm64@npm:2.4.12":
+  version: 2.4.12
+  resolution: "@biomejs/cli-win32-arm64@npm:2.4.12"
   conditions: os=win32 & cpu=arm64
   languageName: node
   linkType: hard
 
-"@biomejs/cli-win32-x64@npm:2.4.10":
-  version: 2.4.10
-  resolution: "@biomejs/cli-win32-x64@npm:2.4.10"
+"@biomejs/cli-win32-x64@npm:2.4.12":
+  version: 2.4.12
+  resolution: "@biomejs/cli-win32-x64@npm:2.4.12"
   conditions: os=win32 & cpu=x64
   languageName: node
   linkType: hard
@@ -2430,7 +2430,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "rescript@workspace:."
   dependencies:
-    "@biomejs/biome": "npm:2.4.10"
+    "@biomejs/biome": "npm:2.4.12"
     "@rescript/darwin-arm64": "workspace:packages/@rescript/darwin-arm64"
     "@rescript/darwin-x64": "workspace:packages/@rescript/darwin-x64"
     "@rescript/linux-arm64": "workspace:packages/@rescript/linux-arm64"