diff --git a/akka-samples/akka-sample-camel-java/project/build.properties b/akka-samples/akka-sample-camel-java/project/build.properties
index 0974fce44d..37b489cb6e 100644
--- a/akka-samples/akka-sample-camel-java/project/build.properties
+++ b/akka-samples/akka-sample-camel-java/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.0
+sbt.version=0.13.1
diff --git a/akka-samples/akka-sample-camel-scala/project/build.properties b/akka-samples/akka-sample-camel-scala/project/build.properties
index 0974fce44d..37b489cb6e 100644
--- a/akka-samples/akka-sample-camel-scala/project/build.properties
+++ b/akka-samples/akka-sample-camel-scala/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.0
+sbt.version=0.13.1
diff --git a/akka-samples/akka-sample-cluster-java/project/build.properties b/akka-samples/akka-sample-cluster-java/project/build.properties
index 0974fce44d..37b489cb6e 100644
--- a/akka-samples/akka-sample-cluster-java/project/build.properties
+++ b/akka-samples/akka-sample-cluster-java/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.0
+sbt.version=0.13.1
diff --git a/akka-samples/akka-sample-cluster-scala/project/build.properties b/akka-samples/akka-sample-cluster-scala/project/build.properties
index 0974fce44d..37b489cb6e 100644
--- a/akka-samples/akka-sample-cluster-scala/project/build.properties
+++ b/akka-samples/akka-sample-cluster-scala/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.0
+sbt.version=0.13.1
diff --git a/akka-samples/akka-sample-main-java/project/build.properties b/akka-samples/akka-sample-main-java/project/build.properties
index 0974fce44d..37b489cb6e 100644
--- a/akka-samples/akka-sample-main-java/project/build.properties
+++ b/akka-samples/akka-sample-main-java/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.0
+sbt.version=0.13.1
diff --git a/akka-samples/akka-sample-main-scala/project/build.properties b/akka-samples/akka-sample-main-scala/project/build.properties
index 0974fce44d..37b489cb6e 100644
--- a/akka-samples/akka-sample-main-scala/project/build.properties
+++ b/akka-samples/akka-sample-main-scala/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.0
+sbt.version=0.13.1
diff --git a/akka-samples/akka-sample-remote-java/project/build.properties b/akka-samples/akka-sample-remote-java/project/build.properties
index 0974fce44d..37b489cb6e 100644
--- a/akka-samples/akka-sample-remote-java/project/build.properties
+++ b/akka-samples/akka-sample-remote-java/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.0
+sbt.version=0.13.1
diff --git a/akka-samples/akka-sample-remote-scala/project/build.properties b/akka-samples/akka-sample-remote-scala/project/build.properties
index 0974fce44d..37b489cb6e 100644
--- a/akka-samples/akka-sample-remote-scala/project/build.properties
+++ b/akka-samples/akka-sample-remote-scala/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.0
+sbt.version=0.13.1
diff --git a/project/build.properties b/project/build.properties
index f238102cc7..37b489cb6e 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.1-RC5
+sbt.version=0.13.1