diff --git a/docs/project/build.properties b/docs/project/build.properties
index 6adcdc75..5a9ed925 100644
--- a/docs/project/build.properties
+++ b/docs/project/build.properties
@@ -1 +1 @@
-sbt.version=1.3.3
+sbt.version=1.3.4
diff --git a/project/build.properties b/project/build.properties
index 6adcdc75..5a9ed925 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.3.3
+sbt.version=1.3.4