diff --git a/CHANGELOG.md b/CHANGELOG.md
index c7723e6..718c8a7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## v0.5.3 (2016-10-23)
+
+* Updated `circe` to version 0.5.4
+
 ## v0.5.2 (2016-10-14)
 
 * Encode `Double.NaN` and infinity as `null` (#2). Big thanks to @jonas for this contribution!
diff --git a/README.md b/README.md
index f3e1f1f..f96e4b7 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 SBT Configuration:
 
 ```scala
-libraryDependencies += "org.sangria-graphql" %% "sangria-circe" % "0.5.2"
+libraryDependencies += "org.sangria-graphql" %% "sangria-circe" % "0.5.3"
 ```
 
 ## License
diff --git a/build.sbt b/build.sbt
index f458713..d8af21e 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,6 @@
 name := "sangria-circe"
 organization := "org.sangria-graphql"
-version := "0.5.3-SNAPSHOT"
+version := "0.5.3"
 
 description := "Sangria circe marshalling"
 homepage := Some(url("http://sangria-graphql.org"))
@@ -9,7 +9,7 @@ licenses := Seq("Apache License, ASL Version 2.0" -> url("http://www.apache.org/
 scalaVersion := "2.11.8"
 scalacOptions ++= Seq("-deprecation", "-feature")
 
-val circeVersion = "0.5.3"
+val circeVersion = "0.5.4"
 
 libraryDependencies ++= Seq(
   "org.sangria-graphql" %% "sangria-marshalling-api" % "0.2.1",
@@ -17,8 +17,8 @@ libraryDependencies ++= Seq(
   "io.circe" %% "circe-core" % circeVersion,
   "io.circe" %% "circe-generic" % circeVersion,
 
-  "org.sangria-graphql" %% "sangria-marshalling-testkit" % "0.2.1" % "test",
-  "org.scalatest" %% "scalatest" % "2.2.6" % "test"
+  "org.sangria-graphql" %% "sangria-marshalling-testkit" % "0.2.2" % "test",
+  "org.scalatest" %% "scalatest" % "3.0.0" % "test"
 )
 
 git.remoteRepo := "git@github.com:sangria-graphql/sangria-circe.git"