diff --git a/downstream-tests/scalafix.sbt b/downstream-tests/scalafix.sbt
index 094b38fc1..3515f51a1 100644
--- a/downstream-tests/scalafix.sbt
+++ b/downstream-tests/scalafix.sbt
@@ -10,7 +10,7 @@ ThisBuild / scalacOptions ++= {
 
 ThisBuild / semanticdbEnabled := true
 
-ThisBuild / semanticdbVersion := "4.5.9"
+ThisBuild / semanticdbVersion := "4.12.0"
 
 ThisBuild / scalafixScalaBinaryVersion := "2.13"
 
diff --git a/library/scalafix.sbt b/library/scalafix.sbt
index 69d935353..14bc20874 100644
--- a/library/scalafix.sbt
+++ b/library/scalafix.sbt
@@ -8,4 +8,4 @@ ThisBuild / scalacOptions ++= {
 ThisBuild / semanticdbEnabled := true
 
 // NOTE: Upgrade downstream-tests/scalafix.sbt too!
-ThisBuild / semanticdbVersion := "4.9.8"
+ThisBuild / semanticdbVersion := "4.12.0"