diff --git a/build.sbt b/build.sbt
index 6f86afc..16c8583 100644
--- a/build.sbt
+++ b/build.sbt
@@ -77,7 +77,7 @@ val root = project
       "io.circe" %% "circe-testing" % circeVersion % Test,
       "org.typelevel" %% "spire" % spireVersion,
       "org.typelevel" %% "spire-laws" % spireVersion % Test,
-      "org.scalatest" %% "scalatest" % "3.2.11" % Test,
+      "org.scalatest" %% "scalatest" % "3.2.18" % Test,
       "org.scalatestplus" %% "scalacheck-1-14" % "3.2.2.0" % Test
     ),
     ghpagesNoJekyll := true,