diff --git a/javascript/package-lock.json b/javascript/package-lock.json
index 13a96fd9..5998e1ea 100644
--- a/javascript/package-lock.json
+++ b/javascript/package-lock.json
@@ -11,7 +11,7 @@
       "devDependencies": {
         "@babel/core": "7.29.7",
         "@biomejs/biome": "^2.4.11",
-        "@cucumber/biome-config": "github:cucumber/biome-config#v0.1.0",
+        "@cucumber/biome-config": "github:cucumber/biome-config#v0.2.1",
         "@cucumber/compatibility-kit": "^29.1.4",
         "@cucumber/gherkin": "39.1.0",
         "@cucumber/gherkin-streams": "^6.0.0",
@@ -486,8 +486,8 @@
       }
     },
     "node_modules/@cucumber/biome-config": {
-      "version": "0.0.0",
-      "resolved": "git+ssh://git@github.com/cucumber/biome-config.git#6e5b2a8a5fdffdb2f5b378e2f401254baa714f25",
+      "version": "0.2.1",
+      "resolved": "git+ssh://git@github.com/cucumber/biome-config.git#5ab9ace6ecb8fee6c5fbdeec8d3bb7438fd5659c",
       "dev": true,
       "license": "MIT"
     },
diff --git a/javascript/package.json b/javascript/package.json
index 5d707dd1..b3e974eb 100644
--- a/javascript/package.json
+++ b/javascript/package.json
@@ -29,7 +29,7 @@
   "devDependencies": {
     "@babel/core": "7.29.7",
     "@biomejs/biome": "^2.4.11",
-    "@cucumber/biome-config": "github:cucumber/biome-config#v0.1.0",
+    "@cucumber/biome-config": "github:cucumber/biome-config#v0.2.1",
     "@cucumber/compatibility-kit": "^29.1.4",
     "@cucumber/gherkin": "39.1.0",
     "@cucumber/gherkin-streams": "^6.0.0",
diff --git a/javascript/src/CucumberHtmlStream.ts b/javascript/src/CucumberHtmlStream.ts
index 717f468a..91bdd9a8 100644
--- a/javascript/src/CucumberHtmlStream.ts
+++ b/javascript/src/CucumberHtmlStream.ts
@@ -48,20 +48,34 @@ export class CucumberHtmlStream extends Transform {
     }
     this.preMessageWritten = true
     this.writeTemplateBetween(null, '{{title}}', (err) => {
-      if (err) return callback(err)
+      if (err) {
+        return callback(err)
+      }
       this.push('Cucumber')
       this.writeTemplateBetween('{{title}}', '{{icon}}', (err) => {
-        if (err) return callback(err)
+        if (err) {
+          return callback(err)
+        }
         this.writeFile(this.iconPath, (err) => {
-          if (err) return callback(err)
+          if (err) {
+            return callback(err)
+          }
           this.writeTemplateBetween('{{icon}}', '{{css}}', (err) => {
-            if (err) return callback(err)
+            if (err) {
+              return callback(err)
+            }
             this.writeFile(this.cssPath, (err) => {
-              if (err) return callback(err)
+              if (err) {
+                return callback(err)
+              }
               this.writeTemplateBetween('{{css}}', '{{custom_css}}', (err) => {
-                if (err) return callback(err)
+                if (err) {
+                  return callback(err)
+                }
                 this.writeTemplateBetween('{{custom_css}}', '{{messages}}', (err) => {
-                  if (err) return callback(err)
+                  if (err) {
+                    return callback(err)
+                  }
                   callback()
                 })
               })
@@ -74,13 +88,21 @@ export class CucumberHtmlStream extends Transform {
 
   private writePostMessage(callback: TransformCallback) {
     this.writePreMessageUnlessAlreadyWritten((err) => {
-      if (err) return callback(err)
+      if (err) {
+        return callback(err)
+      }
       this.writeTemplateBetween('{{messages}}', '{{script}}', (err) => {
-        if (err) return callback(err)
+        if (err) {
+          return callback(err)
+        }
         this.writeFile(this.jsPath, (err) => {
-          if (err) return callback(err)
+          if (err) {
+            return callback(err)
+          }
           this.writeTemplateBetween('{{script}}', '{{custom_script}}', (err) => {
-            if (err) return callback(err)
+            if (err) {
+              return callback(err)
+            }
             this.writeTemplateBetween('{{custom_script}}', null, callback)
           })
         })
@@ -101,8 +123,12 @@ export class CucumberHtmlStream extends Transform {
     callback: (err?: Error | null) => void
   ) {
     this.readTemplate((err, template) => {
-      if (err) return callback(err)
-      if (!template) return callback(new Error('template is required if error is missing'))
+      if (err) {
+        return callback(err)
+      }
+      if (!template) {
+        return callback(new Error('template is required if error is missing'))
+      }
       const beginIndex = begin == null ? 0 : template.indexOf(begin) + begin.length
       const endIndex = end == null ? template.length : template.indexOf(end)
       this.push(template.substring(beginIndex, endIndex))
@@ -115,7 +141,9 @@ export class CucumberHtmlStream extends Transform {
       return callback(null, this.template)
     }
     fs.readFile(`${__dirname}/index.mustache`, { encoding: 'utf-8' }, (err, template) => {
-      if (err) return callback(err)
+      if (err) {
+        return callback(err)
+      }
       this.template = template
       return callback(null, template)
     })