diff --git a/project/build.properties b/project/build.properties
index 10fd9eee..bb3a9b7d 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.5.5
+sbt.version=1.5.6
diff --git a/src/sbt-test/scoverage/aggregate-disabled-module/project/build.properties b/src/sbt-test/scoverage/aggregate-disabled-module/project/build.properties
index 10fd9eee..bb3a9b7d 100644
--- a/src/sbt-test/scoverage/aggregate-disabled-module/project/build.properties
+++ b/src/sbt-test/scoverage/aggregate-disabled-module/project/build.properties
@@ -1 +1 @@
-sbt.version=1.5.5
+sbt.version=1.5.6
diff --git a/src/sbt-test/scoverage/aggregate/project/build.properties b/src/sbt-test/scoverage/aggregate/project/build.properties
index 10fd9eee..bb3a9b7d 100644
--- a/src/sbt-test/scoverage/aggregate/project/build.properties
+++ b/src/sbt-test/scoverage/aggregate/project/build.properties
@@ -1 +1 @@
-sbt.version=1.5.5
+sbt.version=1.5.6