diff --git a/project/plugins.sbt b/project/plugins.sbt
index fec3b5b1..7aca6517 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,6 +1,6 @@
 addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.5.7")
 addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.10.0")
-addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.2.20")
+addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.2.21")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.3.4")
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.27")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.0.0")