diff --git a/build.sbt b/build.sbt
index 5214898..4b8ae34 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,4 +1,4 @@
-import sbtrelease.ReleaseStateTransformations._
+import sbtrelease.ReleaseStateTransformations.*
 
 val scala_2_12: String = "2.12.18"
 val scala_2_13: String = "2.13.12"
diff --git a/project/build.properties b/project/build.properties
index c8fcab5..04267b1 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.6.2
+sbt.version=1.9.9
diff --git a/version.sbt b/version.sbt
index e672cf0..1b8b0f5 100644
--- a/version.sbt
+++ b/version.sbt
@@ -1 +1 @@
-version in ThisBuild := "1.1.8-SNAPSHOT"
+ThisBuild / version := "1.1.8-SNAPSHOT"