diff --git a/.scalafmt.conf b/.scalafmt.conf
new file mode 100644
index 0000000..b03af25
--- /dev/null
+++ b/.scalafmt.conf
@@ -0,0 +1,7 @@
+version = 2.7.5
+
+maxColumn=120
+
+align.tokens=[]
+
+spaces.inImportCurlyBraces=true
diff --git a/build.sbt b/build.sbt
index c0a59db..c750ae3 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,13 +1,12 @@
 name := "aws-v4-signer-scala"
 organization := "com.github.jkugiya"
 
-version := "0.13"
+version := "0.14"
 
-scalaVersion := "2.11.8"
-
-crossScalaVersions := Seq("2.11.8", "2.12.0")
+scalaVersion := "2.13.10"
+crossScalaVersions := Seq("2.11.8", "2.12.17", "2.13.10", "3.2.1")
 
 libraryDependencies ++= Seq(
-  "org.scalatest" %% "scalatest" % "3.0.1" % "test",
-  "org.mockito" % "mockito-core" % "2.2.26" % "test"
+  "org.scalatest" %% "scalatest" % "3.2.14" % "test",
+  "org.mockito" % "mockito-core" % "4.10.0" % "test"
 )
diff --git a/project/build.properties b/project/build.properties
index e0cbc71..9a19778 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version = 0.13.13
\ No newline at end of file
+sbt.version = 1.8.0
diff --git a/project/plugins.sbt b/project/plugins.sbt
index e651fd9..1662385 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,7 +1,7 @@
 logLevel := Level.Warn
 
-addSbtPlugin("org.scalariform" % "sbt-scalariform" % "1.6.0")
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.0")
 
-addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.0.0")
+addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.2.1")
 
-addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "1.1")
\ No newline at end of file
+addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.15")
diff --git a/publish.sbt b/publish.sbt
index a842fbf..94d3c34 100644
--- a/publish.sbt
+++ b/publish.sbt
@@ -11,7 +11,7 @@ publishTo := {
 }
 
 publishMavenStyle := true
-publishArtifact in Test := false
+Test / publishArtifact := false
 pomIncludeRepository := { _ => false }
 
 pomExtra := (
diff --git a/src/main/scala/jkugiya/awstools/signer/v4/CanonicalHeaders.scala b/src/main/scala/jkugiya/awstools/signer/v4/CanonicalHeaders.scala
index 4417eca..807cf5b 100644
--- a/src/main/scala/jkugiya/awstools/signer/v4/CanonicalHeaders.scala
+++ b/src/main/scala/jkugiya/awstools/signer/v4/CanonicalHeaders.scala
@@ -41,9 +41,10 @@ object CanonicalHeaders {
         x.toLowerCase().compareTo(y.toLowerCase())
     }
     val internalMap =
-      headers.foldLeft(TreeMap.empty[String, Vector[String]]) {
-        case (acc, Header(k, v)) =>
-          acc.get(k).fold {
+      headers.foldLeft(TreeMap.empty[String, Vector[String]]) { case (acc, Header(k, v)) =>
+        acc
+          .get(k)
+          .fold {
             acc + (k -> Vector(v))
           } { values =>
             acc + (k -> (values :+ v))
diff --git a/src/main/scala/jkugiya/awstools/signer/v4/HttpRequest.scala b/src/main/scala/jkugiya/awstools/signer/v4/HttpRequest.scala
index dcf1805..b8eebb6 100644
--- a/src/main/scala/jkugiya/awstools/signer/v4/HttpRequest.scala
+++ b/src/main/scala/jkugiya/awstools/signer/v4/HttpRequest.scala
@@ -8,7 +8,8 @@ case class HttpRequest(method: String, uri: URI) {
     if (uri.getPath.isEmpty) "/"
     else {
       val path =
-        uri.getPath.substring(1, uri.getPath.length)
+        uri.getPath
+          .substring(1, uri.getPath.length)
           .split("/")
           .map(URLEncoder.encode(_, "UTF-8").replaceAll("\\*", "%2A"))
           .mkString("/")
diff --git a/src/main/scala/jkugiya/awstools/signer/v4/Signer.scala b/src/main/scala/jkugiya/awstools/signer/v4/Signer.scala
index a4a79a2..7ed1ba7 100644
--- a/src/main/scala/jkugiya/awstools/signer/v4/Signer.scala
+++ b/src/main/scala/jkugiya/awstools/signer/v4/Signer.scala
@@ -27,10 +27,10 @@ object Signer {
   private[this] val Algorithm = AuthTag + "-HMAC-SHA256"
 
   private def signInternal(
-    region: String,
-    service: String,
-    request: CanonicalRequest,
-    credentials: AwsCredentials
+      region: String,
+      service: String,
+      request: CanonicalRequest,
+      credentials: AwsCredentials
   ): String = {
     val headers = request.headers
 
@@ -58,11 +58,11 @@ object Signer {
   }
 
   private[this] def buildSignature(
-    secretKey: String,
-    dateWithoutTimestamp: String,
-    stringToSign: String,
-    service: String,
-    region: String
+      secretKey: String,
+      dateWithoutTimestamp: String,
+      stringToSign: String,
+      service: String,
+      region: String
   ) = {
     val kSecret = (AuthTag + secretKey).getBytes("UTF-8")
     val kDate = HmacSha256.encode(kSecret, dateWithoutTimestamp)
@@ -72,8 +72,13 @@ object Signer {
     Base16.encode(HmacSha256.encode(kSigning, stringToSign)).toLowerCase
   }
 
-  private[this] def buildAuthHeader(accessKey: String, credentialScope: String, signedHeaders: String, signature: String) = {
+  private[this] def buildAuthHeader(
+      accessKey: String,
+      credentialScope: String,
+      signedHeaders: String,
+      signature: String
+  ) = {
     Algorithm + " " + "Credential=" + accessKey + "/" + credentialScope + ", " + "SignedHeaders=" + signedHeaders +
       ", " + "Signature=" + signature
   }
-}
\ No newline at end of file
+}
diff --git a/src/main/scala/jkugiya/awstools/signer/v4/SigningException.scala b/src/main/scala/jkugiya/awstools/signer/v4/SigningException.scala
index 271d669..fd3bf8c 100644
--- a/src/main/scala/jkugiya/awstools/signer/v4/SigningException.scala
+++ b/src/main/scala/jkugiya/awstools/signer/v4/SigningException.scala
@@ -14,4 +14,4 @@ private object SigningException {
     if (msg != null) msg
     else if (cause != null) cause.getMessage
     else null
-}
\ No newline at end of file
+}
diff --git a/src/main/scala/jkugiya/awstools/signer/v4/credentials/AwsCredentialsProviderChain.scala b/src/main/scala/jkugiya/awstools/signer/v4/credentials/AwsCredentialsProviderChain.scala
index 85cb629..a0b3e86 100644
--- a/src/main/scala/jkugiya/awstools/signer/v4/credentials/AwsCredentialsProviderChain.scala
+++ b/src/main/scala/jkugiya/awstools/signer/v4/credentials/AwsCredentialsProviderChain.scala
@@ -37,4 +37,4 @@ object EnvironmentVarResolver {
   implicit val resolver: EnvironmentVarResolver = new EnvironmentVarResolver {
     override def get(key: String): Option[String] = sys.env.get(key)
   }
-}
\ No newline at end of file
+}
diff --git a/src/main/scala/jkugiya/awstools/signer/v4/hash/Base16.scala b/src/main/scala/jkugiya/awstools/signer/v4/hash/Base16.scala
index 2ab1e7a..d8f3cfd 100644
--- a/src/main/scala/jkugiya/awstools/signer/v4/hash/Base16.scala
+++ b/src/main/scala/jkugiya/awstools/signer/v4/hash/Base16.scala
@@ -7,8 +7,8 @@ private[v4] object Base16 {
   def encode(data: Array[Byte]): String = {
     val sb = StringBuilder.newBuilder
     data foreach { d =>
-      sb.append(EncTab((d & 0xF0) >> 4))
-      sb.append(EncTab(d & 0x0F))
+      sb.append(EncTab((d & 0xf0) >> 4))
+      sb.append(EncTab(d & 0x0f))
     }
     sb.toString()
   }