diff --git a/akka-samples/akka-sample-main-java-lambda/build.sbt b/akka-samples/akka-sample-main-java-lambda/build.sbt
index f97a28d328..d6c1c4997d 100644
--- a/akka-samples/akka-sample-main-java-lambda/build.sbt
+++ b/akka-samples/akka-sample-main-java-lambda/build.sbt
@@ -2,7 +2,7 @@ name := "akka-sample-main-java-lambda"
 
 version := "1.0"
 
-scalaVersion := "2.10.3"
+scalaVersion := "2.10.4"
 
 libraryDependencies ++= Seq(
   "com.typesafe.akka" %% "akka-actor" % "2.4-SNAPSHOT"
diff --git a/akka-samples/akka-sample-persistence-java-lambda/build.sbt b/akka-samples/akka-sample-persistence-java-lambda/build.sbt
index 0e2bdcf8f3..fe8d952b2e 100644
--- a/akka-samples/akka-sample-persistence-java-lambda/build.sbt
+++ b/akka-samples/akka-sample-persistence-java-lambda/build.sbt
@@ -2,7 +2,7 @@ name := "akka-sample-persistence-java-lambda"
 
 version := "1.0"
 
-scalaVersion := "2.10.3"
+scalaVersion := "2.10.4"
 
 javacOptions ++= Seq("-source", "1.8", "-target", "1.8", "-Xlint")
 
diff --git a/akka-samples/akka-sample-supervision-java-lambda/build.sbt b/akka-samples/akka-sample-supervision-java-lambda/build.sbt
index dcef4b337e..05e77d0d71 100644
--- a/akka-samples/akka-sample-supervision-java-lambda/build.sbt
+++ b/akka-samples/akka-sample-supervision-java-lambda/build.sbt
@@ -2,7 +2,7 @@ name := "akka-supervision-java-lambda"
 
 version := "1.0"
 
-scalaVersion := "2.10.3"
+scalaVersion := "2.10.4"
 
 javacOptions ++= Seq("-source", "1.8", "-target", "1.8", "-Xlint")