diff --git a/project/plugins.sbt b/project/plugins.sbt
index 9d02cf0411..035ba01943 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,5 +1,5 @@
 addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.15.0")
-addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.2.20")
+addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.2.21")
 addSbtPlugin("io.github.davidgregory084" % "sbt-tpolecat" % "0.1.18")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.2")
 addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.10.0")