diff --git a/sbt/src/sbt-test/project/semanticdb/build.sbt b/sbt/src/sbt-test/project/semanticdb/build.sbt
index 1f666a470..3be99bedc 100644
--- a/sbt/src/sbt-test/project/semanticdb/build.sbt
+++ b/sbt/src/sbt-test/project/semanticdb/build.sbt
@@ -1,4 +1,4 @@
-ThisBuild / scalaVersion := "2.12.9"
+ThisBuild / scalaVersion := "2.12.8"
 ThisBuild / semanticdbEnabled := true
 ThisBuild / semanticdbIncludeInJar := true