diff --git a/project/build.properties b/project/build.properties
index 96bbcf4..ef72f0d 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -15,4 +15,4 @@
 # limitations under the License.
 #
 
-sbt.version=1.5.5
+sbt.version=1.5.6