diff --git a/project/plugins.sbt b/project/plugins.sbt
index 266886ad..5d45b653 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,5 +1,5 @@
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.3.2")
-addSbtPlugin("org.scalameta"       % "sbt-mdoc"        % "2.3.3")
+addSbtPlugin("org.scalameta"       % "sbt-mdoc"        % "2.3.8")
 addSbtPlugin("com.thesamet" % "sbt-protoc" % "0.99.25")
 addSbtPlugin("com.github.tkawachi"  % "sbt-doctest"     % "0.10.0")
 addSbtPlugin("com.typesafe"         % "sbt-mima-plugin" % "1.1.1")