diff --git a/build.sbt b/build.sbt
index 594cb6d..4d9b5d7 100644
--- a/build.sbt
+++ b/build.sbt
@@ -73,7 +73,7 @@ lazy val client_lib = (project in file("digdag-client"))
       "commons-io" % "commons-io" % "2.11.0",
       "org.wvlet.airframe" %% "airframe-log" % airframeVersion,
       "org.wvlet.airframe" %% "airframe-http-finagle" % airframeVersion  % Test,
-      "org.scalatest" %% "scalatest" % "3.2.10" % Test,
+      "org.scalatest" %% "scalatest" % "3.2.19" % Test,
       "org.scalactic" %% "scalactic" % "3.2.10" % Test,
       "org.mockito" % "mockito-all" % "1.10.19" % Test
     ),
@@ -89,7 +89,7 @@ lazy val shell = (project in file("digdag-shell"))
     name := "digdag-shell",
     libraryDependencies ++= Seq(
       "org.scala-lang" % "scala-compiler" % scala213,
-      "org.scalatest" %% "scalatest" % "3.2.10" % Test,
+      "org.scalatest" %% "scalatest" % "3.2.19" % Test,
       "org.scalactic" %% "scalactic" % "3.2.10" % Test,
       "org.mockito" % "mockito-all" % "1.10.19" % Test
     ),