diff --git a/build.sbt b/build.sbt
index cea5b8f..2cc170e 100644
--- a/build.sbt
+++ b/build.sbt
@@ -23,7 +23,7 @@ lazy val baseSettings = Seq(
   },
   // scala-steward:on
   libraryDependencies ++= Seq(
-    "org.scalatest" %% "scalatest" % "3.2.9" % "test",
+    "org.scalatest" %% "scalatest" % "3.2.18" % "test",
     "org.scala-lang.modules" % "scala-jline" % "2.12.1"
   ),
   scalacOptions in Compile ++= Seq(
diff --git a/build.sc b/build.sc
index 963aca6..3f74de5 100644
--- a/build.sc
+++ b/build.sc
@@ -82,7 +82,7 @@ class treadleCrossModule(crossVersionValue: String) extends CommonModule with Pu
   def mainClass = Some("treadle.repl.TreadleReplMain")
 
   def ivyDeps = super.ivyDeps() ++ Agg(
-    ivy"org.scala-lang.modules:scala-jline:2.12.1",
+    ivy"org.scala-lang.modules:scala-jline:2.12.1"
   )
 
   object test extends Tests {
@@ -92,7 +92,7 @@ class treadleCrossModule(crossVersionValue: String) extends CommonModule with Pu
     }
 
     def ivyDeps = Agg(
-      ivy"org.scalatest::scalatest:3.2.9",
+      ivy"org.scalatest::scalatest:3.2.18"
     ) ++ ivyCrossDeps
 
     def testFrameworks = Seq("org.scalatest.tools.Framework")