diff --git a/.travis.yml b/.travis.yml
index 9d271a6..713eac5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,7 +9,7 @@ scala:
   # no 2.13 for now in cross-build because of
   # https://github.com/scala/scala-java8-compat/issues/97
   - 2.11.12
-  - 2.12.6
+  - 2.12.8
 
 env:
   global:
diff --git a/build.sbt b/build.sbt
index 8b06540..04afc19 100644
--- a/build.sbt
+++ b/build.sbt
@@ -2,7 +2,7 @@ import ScalaModulePlugin._
 
 // no 2.13 for now in cross-build because of
 // https://github.com/scala/scala-java8-compat/issues/97
-crossScalaVersions in ThisBuild := List("2.12.6", "2.11.12")
+crossScalaVersions in ThisBuild := List("2.12.8", "2.11.12")
 
 val disableDocs = sys.props("nodocs") == "true"
 
diff --git a/project/build.properties b/project/build.properties
index 133a8f1..8e682c5 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.17
+sbt.version=0.13.18