diff --git a/README.md b/README.md
index 4dfd444..968f555 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,8 @@ Compatible with scala 2.11 and scala 2.12, with play-json and circe.
 |--------------------|---------------------------|
 | 2.6.2              |  0.1                      |
 | 2.6.7              |  0.3                      |
-| 2.7.4              |  1.A                      |
+| 2.7.4              |  1.1                      |
+| 2.8.1              |  1.2                      |
 
 ### Add Dependency
 
diff --git a/build.sbt b/build.sbt
index 638c081..ea633d9 100644
--- a/build.sbt
+++ b/build.sbt
@@ -38,15 +38,15 @@ lazy val `metrics-circe` = (project in file("modules/metrics-circe"))
     "io.circe" %% "circe-generic",
     "io.circe" %% "circe-parser"
   ).map(_ % circeVersion % Compile))
-  .settings(libraryDependencies += "org.scalatest" %% "scalatest" % "3.1.0" % Test)
+  .settings(libraryDependencies += "org.scalatest" %% "scalatest" % "3.1.1" % Test)
   .dependsOn(`metrics-core`)
   .aggregate(`metrics-core`)
 
-val playJsonVersion = "2.7.4"
+val playJsonVersion = "2.8.1"
 lazy val `metrics-playjson` = (project in file("modules/metrics-playjson"))
   .settings(GlobalSettings)
   .settings(libraryDependencies += "com.typesafe.play" %% "play-json" % playJsonVersion % Compile)
-  .settings(libraryDependencies += "org.scalatest" %% "scalatest" % "3.1.0" % Test)
+  .settings(libraryDependencies += "org.scalatest" %% "scalatest" % "3.1.1" % Test)
   .settings(libraryDependencies += "org.joda" % "joda-convert" % "2.2.1" % Compile)
   .dependsOn(`metrics-core`)
   .aggregate(`metrics-core`)
diff --git a/modules/metrics-playjson/src/main/scala/io/tabmo/metrics/playjson/PlayJsonMetricsEncoder.scala b/modules/metrics-playjson/src/main/scala/io/tabmo/metrics/playjson/PlayJsonMetricsEncoder.scala
index c52bc6d..6df2082 100644
--- a/modules/metrics-playjson/src/main/scala/io/tabmo/metrics/playjson/PlayJsonMetricsEncoder.scala
+++ b/modules/metrics-playjson/src/main/scala/io/tabmo/metrics/playjson/PlayJsonMetricsEncoder.scala
@@ -61,7 +61,7 @@ trait PlayJsonMetricsEncoder {
     )
   }
 
-  implicit def gaugeEncoder: Writes[Gauge[_]] = Writes { gauge =>
+  def gaugeEncoder(gauge: Gauge[_]): JsValue = {
     gauge.getValue match {
       case x: Int => JsNumber(x)
       case x: Long => JsNumber(x)
@@ -80,7 +80,7 @@ trait PlayJsonMetricsEncoder {
       case m: Meter => Json.obj(key -> m)
       case t: Timer => Json.obj(key -> t)
       case c: Counter => Json.obj(key -> c)
-      case g: Gauge[_] => Json.obj(key -> g)
+      case g: Gauge[_] => Json.obj(key -> gaugeEncoder(g))
       case _ => Json.obj()
     }
 
diff --git a/version.sbt b/version.sbt
index 46fbe50..be39869 100644
--- a/version.sbt
+++ b/version.sbt
@@ -1 +1 @@
-version in ThisBuild := "1.1"
+version in ThisBuild := "1.2"