diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index e0b7dd213..a4e74dc60 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -1,2 +1,5 @@
 # Scala Steward: Reformat with scalafmt 3.8.4
 ee851aa4e36b33e8971b66b2b3aef8b4e28d6854
+
+# Scala Steward: Reformat with scalafmt 3.9.10
+43741c1f9e98654f83ebba1499f560b83ba7d591
diff --git a/.scalafmt.conf b/.scalafmt.conf
index f95bd614f..f03963d17 100644
--- a/.scalafmt.conf
+++ b/.scalafmt.conf
@@ -1,4 +1,4 @@
-version = "3.8.6"
+version = "3.9.10"
 runner.dialect = "scala3"
 
 maxColumn = 140
diff --git a/lettuce-pureconfig/src/main/scala-2/com/avast/sst/lettuce/pureconfig/ConfigReaders.scala b/lettuce-pureconfig/src/main/scala-2/com/avast/sst/lettuce/pureconfig/ConfigReaders.scala
index d524aa40c..358369d0e 100644
--- a/lettuce-pureconfig/src/main/scala-2/com/avast/sst/lettuce/pureconfig/ConfigReaders.scala
+++ b/lettuce-pureconfig/src/main/scala-2/com/avast/sst/lettuce/pureconfig/ConfigReaders.scala
@@ -20,7 +20,7 @@ trait ConfigReaders {
     case "DEFAULT"         => DisconnectedBehavior.DEFAULT.asRight
     case "ACCEPT_COMMANDS" => DisconnectedBehavior.ACCEPT_COMMANDS.asRight
     case "REJECT_COMMANDS" => DisconnectedBehavior.REJECT_COMMANDS.asRight
-    case unknown =>
+    case unknown           =>
       CannotConvert(
         unknown,
         "DisconnectedBehavior",
diff --git a/lettuce-pureconfig/src/main/scala-3/com/avast/sst/lettuce/pureconfig/ConfigReaders.scala b/lettuce-pureconfig/src/main/scala-3/com/avast/sst/lettuce/pureconfig/ConfigReaders.scala
index 2464d5ce2..12c6c6303 100644
--- a/lettuce-pureconfig/src/main/scala-3/com/avast/sst/lettuce/pureconfig/ConfigReaders.scala
+++ b/lettuce-pureconfig/src/main/scala-3/com/avast/sst/lettuce/pureconfig/ConfigReaders.scala
@@ -17,7 +17,7 @@ trait ConfigReaders {
     case "DEFAULT"         => DisconnectedBehavior.DEFAULT.asRight
     case "ACCEPT_COMMANDS" => DisconnectedBehavior.ACCEPT_COMMANDS.asRight
     case "REJECT_COMMANDS" => DisconnectedBehavior.REJECT_COMMANDS.asRight
-    case unknown =>
+    case unknown           =>
       CannotConvert(
         unknown,
         "DisconnectedBehavior",
diff --git a/pureconfig/src/main/scala/com/avast/sst/pureconfig/util/Toggle.scala b/pureconfig/src/main/scala/com/avast/sst/pureconfig/util/Toggle.scala
index b01f48f82..fbd57ad97 100644
--- a/pureconfig/src/main/scala/com/avast/sst/pureconfig/util/Toggle.scala
+++ b/pureconfig/src/main/scala/com/avast/sst/pureconfig/util/Toggle.scala
@@ -90,7 +90,7 @@ object Toggle {
     override def empty: Toggle[A] = Disabled
     override def combine(x: Toggle[A], y: Toggle[A]): Toggle[A] =
       x match {
-        case Disabled => y
+        case Disabled   => y
         case Enabled(a) =>
           y match {
             case Disabled   => x
@@ -102,7 +102,7 @@ object Toggle {
   class ToggleOrder[A](implicit A: Order[A]) extends Order[Toggle[A]] {
     override def compare(x: Toggle[A], y: Toggle[A]): Int =
       x match {
-        case Disabled => if (y.isEmpty) 0 else -1
+        case Disabled   => if (y.isEmpty) 0 else -1
         case Enabled(a) =>
           y match {
             case Disabled   => 1