diff --git a/app/controllers/admin/Search.scala b/app/controllers/admin/Search.scala
index d01fa6e..6504ba4 100644
--- a/app/controllers/admin/Search.scala
+++ b/app/controllers/admin/Search.scala
@@ -14,7 +14,7 @@ class Search @Inject()
    layout_admin_simple: views.html.admin.layout_admin_simple)
   (implicit ec: ExecutionContext, pingsDAO: PingsDAO, parser: BodyParsers.Default, productsDAO: ProductsDAO) extends AbstractController(cc) {
 
-  import cyan.util.TwirlHelpers._
+  import play.twirl.api.StringInterpolation
   import play.api.data.Forms._
   val queryForm = Form("query" -> text)
 
diff --git a/app/views/admin/ip_view.scala.html b/app/views/admin/ip_view.scala.html
index 302b32d..7af5268 100644
--- a/app/views/admin/ip_view.scala.html
+++ b/app/views/admin/ip_view.scala.html
@@ -3,7 +3,7 @@
 @import dao.PingExtrasDAO
 @import dao.ResponsesDAO
 @import util.FutureUtils._
-@import cyan.util.TwirlHelpers._
+@import play.twirl.api.StringInterpolation
 @import cyan.backend.Backend
 @import dao.ProductConfigDAO
 @this(layout_admin_simple: views.html.admin.layout_admin_simple)(implicit backend: Backend, productsDAO: ProductsDAO, productConfigDAO: ProductConfigDAO, pingExtrasDAO: PingExtrasDAO, pingsDAO: PingsDAO, responsesDAO: ResponsesDAO)
diff --git a/app/views/admin/license_view.scala.html b/app/views/admin/license_view.scala.html
index 5030c09..8f99e49 100644
--- a/app/views/admin/license_view.scala.html
+++ b/app/views/admin/license_view.scala.html
@@ -2,7 +2,7 @@
 @import cyan.backend.Backend
 @import dao.PingsDAO
 @import util.FutureUtils._
-@import cyan.util.TwirlHelpers._
+@import play.twirl.api.StringInterpolation
 @import scala.concurrent.Future
 @import shapeless._
 @import dao.ProductsDAO
diff --git a/app/views/admin/prod_license_view.scala.html b/app/views/admin/prod_license_view.scala.html
index 9519c61..b0a05bf 100644
--- a/app/views/admin/prod_license_view.scala.html
+++ b/app/views/admin/prod_license_view.scala.html
@@ -4,7 +4,7 @@
 @import dao.PingResponsesDAO
 @import dao.ProductsDAO
 @import util.FutureUtils._
-@import cyan.util.TwirlHelpers._
+@import play.twirl.api.StringInterpolation
 @import dao.ResponsesDAO
 @import dao.ProdLicensePingDAO
 @import util.FutureUtils._
diff --git a/app/views/admin/prod_pingextra_view.scala.html b/app/views/admin/prod_pingextra_view.scala.html
index 7dd4fdd..6a37fc6 100644
--- a/app/views/admin/prod_pingextra_view.scala.html
+++ b/app/views/admin/prod_pingextra_view.scala.html
@@ -4,7 +4,7 @@
 @import model.Product
 @import org.joda.time.{LocalDate, LocalTime}
 @import util.FutureUtils._
-@import cyan.util.TwirlHelpers._
+@import play.twirl.api.StringInterpolation
 
 @import scala.concurrent.ExecutionContext
 
diff --git a/app/views/admin/prod_pingextra_view_value.scala.html b/app/views/admin/prod_pingextra_view_value.scala.html
index d2ab257..27ab14d 100644
--- a/app/views/admin/prod_pingextra_view_value.scala.html
+++ b/app/views/admin/prod_pingextra_view_value.scala.html
@@ -4,7 +4,7 @@
 @import model.Product
 @import org.joda.time.{LocalDate, LocalTime}
 @import util.FutureUtils._
-@import cyan.util.TwirlHelpers._
+@import play.twirl.api.StringInterpolation
 
 @import scala.concurrent.ExecutionContext
 @import cyan.backend.Backend
diff --git a/app/views/admin/user_view.scala.html b/app/views/admin/user_view.scala.html
index 97fe0cc..806ca7a 100644
--- a/app/views/admin/user_view.scala.html
+++ b/app/views/admin/user_view.scala.html
@@ -3,7 +3,7 @@
 @import dao.PingExtrasDAO
 @import dao.ResponsesDAO
 @import util.FutureUtils._
-@import cyan.util.TwirlHelpers._
+@import play.twirl.api.StringInterpolation
 @import cyan.backend.Backend
 @import dao.ProductConfigDAO
 @import dao.ProdLicensePingDAO
diff --git a/app/views/snippet/nav/NavObjects.scala b/app/views/snippet/nav/NavObjects.scala
index 1450dd8..3b089c1 100644
--- a/app/views/snippet/nav/NavObjects.scala
+++ b/app/views/snippet/nav/NavObjects.scala
@@ -7,7 +7,7 @@ import play.twirl.api.Html
   * Contains utilities for parsing navigation objects (eg. for breadcrumbs)
   */
 object NavObjects {
-  import cyan.util.TwirlHelpers._
+  import play.twirl.api.StringInterpolation
 
   def parse(obj: Any, active: Boolean = false): (Html, Option[Call]) = obj match {
     case prod: model.Product => (html"${prod.name}", Some(controllers.admin.prod.routes.Products.view(prod.id)))
diff --git a/backend-core/build.sbt b/backend-core/build.sbt
index 6a30da1..9be18bb 100644
--- a/backend-core/build.sbt
+++ b/backend-core/build.sbt
@@ -5,6 +5,5 @@ version := "1.0"
 scalaVersion := "2.11.7"
 
 libraryDependencies ++= Seq(
-  "com.google.inject" % "guice" % "4.0",
-  "com.typesafe.play" %% "twirl-api" % "1.3.2"
+  "com.typesafe.play" %% "twirl-api" % "1.3.2" % "provided"
 )
\ No newline at end of file
diff --git a/backend-core/src/main/scala/cyan/util/TwirlHelpers.scala b/backend-core/src/main/scala/cyan/util/TwirlHelpers.scala
index 1f76f6f..1e58a4d 100644
--- a/backend-core/src/main/scala/cyan/util/TwirlHelpers.scala
+++ b/backend-core/src/main/scala/cyan/util/TwirlHelpers.scala
@@ -11,33 +11,4 @@ object TwirlHelpers {
       new BaseScalaTemplate[Html, Format[Html]](HtmlFormat)._display_(Array(html, other))
     }
   }
-
-  /**
-    * Manually copied from Twirl's development version.
-    * TODO: remove me when twirl is updated to 1.1.2
-    */
-  implicit class StringInterpolation(val sc: StringContext) extends AnyVal {
-
-    def html(args: Any*): Html = interpolate(args, HtmlFormat)
-
-    def xml(args: Any*): Xml = interpolate(args, XmlFormat)
-
-    def js(args: Any*): JavaScript = interpolate(args, JavaScriptFormat)
-
-    def interpolate[A <: Appendable[A] : Manifest](args: Seq[Any], format: Format[A]): A = {
-      sc.checkLengths(args)
-      val array = Array.ofDim[Any](args.size + sc.parts.size)
-      val strings = sc.parts.iterator
-      val expressions = args.iterator
-      array(0) = format.raw(strings.next())
-      var i = 1
-      while (strings.hasNext) {
-        array(i) = expressions.next()
-        array(i + 1) = format.raw(strings.next())
-        i += 2
-      }
-      new BaseScalaTemplate[A, Format[A]](format)._display_(array)
-    }
-
-  }
 }