diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
new file mode 100644
index 0000000000..ce9f086281
--- /dev/null
+++ b/.git-blame-ignore-revs
@@ -0,0 +1,2 @@
+# Scala Steward: Reformat with scalafmt 3.8.0
+c7afd84c5921949600cd336bbc72acbb41d2342b
diff --git a/.scalafmt.conf b/.scalafmt.conf
index 7914cb3693..376b6ac321 100644
--- a/.scalafmt.conf
+++ b/.scalafmt.conf
@@ -1,4 +1,4 @@
-version = 3.7.17
+version = 3.8.0
 runner.dialect = scala212
 
 project.git = true
diff --git a/internal/zinc-scripted/src/test/scala/sbt/internal/inc/IncHandler.scala b/internal/zinc-scripted/src/test/scala/sbt/internal/inc/IncHandler.scala
index 11c73cdd37..ac479e33a7 100644
--- a/internal/zinc-scripted/src/test/scala/sbt/internal/inc/IncHandler.scala
+++ b/internal/zinc-scripted/src/test/scala/sbt/internal/inc/IncHandler.scala
@@ -196,7 +196,12 @@ class IncHandler(directory: Path, cacheDir: Path, scriptedLog: ManagedLogger, co
       toCache
     }
     val analyzingCompiler = scalaCompiler(si, compilerBridge)
-    val cs = incrementalCompiler.compilers(si, ClasspathOptionsUtil.noboot(si.version), None, analyzingCompiler)
+    val cs = incrementalCompiler.compilers(
+      si,
+      ClasspathOptionsUtil.noboot(si.version),
+      None,
+      analyzingCompiler
+    )
     IncState(si, cs, 0)
   }
 
diff --git a/zinc/src/test/resources/sources/naha/ClientWithImplicitUsed.scala b/zinc/src/test/resources/sources/naha/ClientWithImplicitUsed.scala
index 3982b708f2..2a6f4eabad 100644
--- a/zinc/src/test/resources/sources/naha/ClientWithImplicitUsed.scala
+++ b/zinc/src/test/resources/sources/naha/ClientWithImplicitUsed.scala
@@ -12,7 +12,7 @@
 package naha
 
 object ClientWithImplicitUsed {
-  def add(nr: Any)(implicit no: ImplicitWrapper[_]) = nr.toString + no.a.toString
+  def add(nr: Any)(implicit no: ImplicitWrapper[?]) = nr.toString + no.a.toString
 
   val vals: Seq[Any] = Seq(NormalDependecy.implicitMember, NormalDependecy.standardMember)