diff --git a/project/plugins.sbt b/project/plugins.sbt
index e733f864e6..9e86e32964 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -18,7 +18,7 @@
 addSbtPlugin("com.etsy" % "sbt-checkstyle-plugin" % "3.1.1")
 
 // sbt-checkstyle-plugin uses an old version of checkstyle. Match it to Maven's.
-libraryDependencies += "com.puppycrawl.tools" % "checkstyle" % "8.25"
+libraryDependencies += "com.puppycrawl.tools" % "checkstyle" % "8.39"
 
 // checkstyle uses guava 23.0.
 libraryDependencies += "com.google.guava" % "guava" % "23.0"