diff --git a/ergoMixFront b/ergoMixFront
index c2754c0..2834b2b 160000
--- a/ergoMixFront
+++ b/ergoMixFront
@@ -1 +1 @@
-Subproject commit c2754c0aac36266685ff5205508782a29b9a5634
+Subproject commit 2834b2b1c6c1de1a0854db92e6f1f8becea0e571
diff --git a/mixer/app/controllers/ApiController.scala b/mixer/app/controllers/ApiController.scala
index 109a116..c1564b6 100644
--- a/mixer/app/controllers/ApiController.scala
+++ b/mixer/app/controllers/ApiController.scala
@@ -502,7 +502,7 @@ class ApiController @Inject()(assets: Assets, controllerComponents: ControllerCo
         }",
            |  "withdrawStatus": "${mix.mixRequest.withdrawStatus}",
            |  "withdrawTxId": "$withdrawTxId",
-           |  "lastMixTime": $lastMixTime,
+           |  "lastMixTime": "$lastMixTime",
            |  "mixingTokenId": "${mix.mixRequest.tokenId}",
            |  "mixingTokenAmount": ${mix.mixRequest.mixingTokenAmount}
            |}""".stripMargin
diff --git a/mixer/build.sbt b/mixer/build.sbt
index db05477..0bbe629 100644
--- a/mixer/build.sbt
+++ b/mixer/build.sbt
@@ -11,7 +11,7 @@ libraryDependencies ++= Seq(evolutions, jdbc)
 
 lazy val commonSettings = Seq(
   organization := "ergoMixer",
-  version := "3.3.3",
+  version := "3.3.4",
   scalaVersion := "2.12.10",
   resolvers ++= Seq(sonatypeReleases,
     "SonaType" at "https://oss.sonatype.org/content/groups/public",