diff --git a/project/build.properties b/project/build.properties
index 8b697bb..31334bb 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.1.0
+sbt.version=1.1.1
diff --git a/project/plugin-site.sbt b/project/plugin-site.sbt
index 8961ab8..3736eed 100644
--- a/project/plugin-site.sbt
+++ b/project/plugin-site.sbt
@@ -1,2 +1,2 @@
 // Standard plugin for generating docs, etc.
-addSbtPlugin("com.typesafe.sbt" % "sbt-site" % "1.3.1")
+addSbtPlugin("com.typesafe.sbt" % "sbt-site" % "1.3.2")
diff --git a/project/project/build.properties b/project/project/build.properties
index 8b697bb..31334bb 100644
--- a/project/project/build.properties
+++ b/project/project/build.properties
@@ -1 +1 @@
-sbt.version=1.1.0
+sbt.version=1.1.1