diff --git a/.scalafmt.conf b/.scalafmt.conf
index 6ff9407ced..e0b727bdb2 100644
--- a/.scalafmt.conf
+++ b/.scalafmt.conf
@@ -1,4 +1,4 @@
-version = 3.8.1
+version = 3.8.2
 project.layout = StandardConvention
 runner.dialect = scala3
 maxColumn = 120
@@ -20,11 +20,17 @@ runner.dialectOverride.allowSignificantIndentation = false
 runner.dialectOverride.allowQuestionMarkAsTypeWildcard = false
 
 fileOverride {
+  "glob:**/scala/**" {
+     runner.dialect = scala213source3
+  }
   "glob:**/scala-2/**" {
-    runner.dialect = scala213source3
+     runner.dialect = scala213source3
+  }
+  "glob:**/scala-3/**" {
+     runner.dialect = scala3
   }
   "glob:**/scala-3/wvlet/log/LoggerBase.scala" {
-    // optional brace didn't work for code with inline/macro methods
-    rewrite.scala3.removeOptionalBraces = no
+     // optional brace didn't work for code with inline/macro methods
+     rewrite.scala3.removeOptionalBraces = no
   }
 }
diff --git a/airframe-control/src/main/scala/wvlet/airframe/control/HealthCheckPolicy.scala b/airframe-control/src/main/scala/wvlet/airframe/control/HealthCheckPolicy.scala
index bf87a24b26..883ae9c4e6 100644
--- a/airframe-control/src/main/scala/wvlet/airframe/control/HealthCheckPolicy.scala
+++ b/airframe-control/src/main/scala/wvlet/airframe/control/HealthCheckPolicy.scala
@@ -138,7 +138,7 @@ object HealthCheckPolicy extends LogSupport {
 
       private def setAndMove(v: Boolean): Unit = {
         val i    = (executionCount % numExecutions).toInt
-        val mask = 1L << (63 - i   % 64)
+        val mask = 1L << (63 - i % 64)
         if (v == true) {
           executionHistory(i / 64) |= mask
         } else {
diff --git a/airframe-rx-html/src/test/scala/wvlet/airframe/rx/html/HtmlTest.scala b/airframe-rx-html/src/test/scala/wvlet/airframe/rx/html/HtmlTest.scala
index 7ddd431e51..1440d1f3b9 100644
--- a/airframe-rx-html/src/test/scala/wvlet/airframe/rx/html/HtmlTest.scala
+++ b/airframe-rx-html/src/test/scala/wvlet/airframe/rx/html/HtmlTest.scala
@@ -133,7 +133,7 @@ class HtmlTest extends AirSpec {
       style.noValue
     )
 
-    val d = div()
+    val d           = div()
     d(style           -> "width: 10px;")
     d.addModifier(cls -> "test")
   }