diff --git a/project/mdoc.sbt b/project/mdoc.sbt
index cff16b832..1f520062a 100644
--- a/project/mdoc.sbt
+++ b/project/mdoc.sbt
@@ -1 +1 @@
-addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.5.4" )
+addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.9.0" )