diff --git a/main/src/main/scala/sbt/MainLoop.scala b/main/src/main/scala/sbt/MainLoop.scala
index 85893709c..7ccfa3a97 100644
--- a/main/src/main/scala/sbt/MainLoop.scala
+++ b/main/src/main/scala/sbt/MainLoop.scala
@@ -133,9 +133,9 @@ private[sbt] object MainLoop:
   // }
 
   enum RunNext:
-    case ClearGlobalLog(val state: State)
-    case KeepGlobalLog(val state: State)
-    case Return(val result: xsbti.MainResult)
+    case ClearGlobalLog(state: State)
+    case KeepGlobalLog(state: State)
+    case Return(result: xsbti.MainResult)
 
   def run(state: State): RunNext =
     val exchange = StandardMain.exchange
diff --git a/util-cache/src/test/scala/SingletonCacheSpec.scala b/util-cache/src/test/scala/SingletonCacheSpec.scala
index de8745dc0..0d2972b8c 100644
--- a/util-cache/src/test/scala/SingletonCacheSpec.scala
+++ b/util-cache/src/test/scala/SingletonCacheSpec.scala
@@ -18,7 +18,7 @@ import org.scalatest.flatspec.AnyFlatSpec
 
 class SingletonCacheSpec extends AnyFlatSpec {
 
-  case class ComplexType(val x: Int, y: String, z: List[Int])
+  case class ComplexType(x: Int, y: String, z: List[Int])
   object ComplexType {
     given format: JsonFormat[ComplexType] =
       new JsonFormat[ComplexType] {
diff --git a/util-collection/src/test/scala/SettingsExample.scala b/util-collection/src/test/scala/SettingsExample.scala
index 544cd59d7..23e1267ad 100644
--- a/util-collection/src/test/scala/SettingsExample.scala
+++ b/util-collection/src/test/scala/SettingsExample.scala
@@ -41,7 +41,7 @@ case class SettingsExample() extends Init {
 }
 
 /** Usage Example * */
-case class SettingsUsage(val settingsExample: SettingsExample) {
+case class SettingsUsage(settingsExample: SettingsExample) {
   import settingsExample.*
 
   // Define some keys