diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 5162e2f1d..0ce94ff64 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -20,7 +20,7 @@ object Dependencies {
   def metacp = "org.scalameta" %% "metacp" % scalametaV
   def semanticdbPluginLibrary = "org.scalameta" % "semanticdb-scalac-core" % scalametaV cross CrossVersion.full
   def scalameta = "org.scalameta" %% "scalameta" % scalametaV
-  def scalatest = "org.scalatest" %% "scalatest" % "3.0.8"
+  def scalatest = "org.scalatest" %% "scalatest" % "3.1.0"
   def scalacheck = "org.scalacheck" %% "scalacheck" % "1.14.2"
 
   def testsDeps = List(
diff --git a/scalafix-testkit/src/main/scala/scalafix/testkit/DiffAssertions.scala b/scalafix-testkit/src/main/scala/scalafix/testkit/DiffAssertions.scala
index db3525747..9e7fad19d 100644
--- a/scalafix-testkit/src/main/scala/scalafix/testkit/DiffAssertions.scala
+++ b/scalafix-testkit/src/main/scala/scalafix/testkit/DiffAssertions.scala
@@ -5,8 +5,8 @@ import java.text.SimpleDateFormat
 import java.util.Date
 import java.util.TimeZone
 
-import org.scalatest.FunSuiteLike
 import org.scalatest.exceptions.TestFailedException
+import org.scalatest.funsuite.AnyFunSuiteLike
 
 object DiffAssertions {
   def compareContents(original: String, revised: String): String = {
@@ -34,7 +34,7 @@ object DiffAssertions {
   }
 }
 
-trait DiffAssertions extends FunSuiteLike {
+trait DiffAssertions extends AnyFunSuiteLike {
 
   def assertEqual[A](a: A, b: A): Unit = {
     assert(a === b)
diff --git a/scalafix-testkit/src/main/scala/scalafix/testkit/SemanticRuleSuite.scala b/scalafix-testkit/src/main/scala/scalafix/testkit/SemanticRuleSuite.scala
index 10f960d48..23475071a 100644
--- a/scalafix-testkit/src/main/scala/scalafix/testkit/SemanticRuleSuite.scala
+++ b/scalafix-testkit/src/main/scala/scalafix/testkit/SemanticRuleSuite.scala
@@ -2,7 +2,6 @@ package scalafix.testkit
 
 import java.nio.charset.StandardCharsets
 import org.scalatest.BeforeAndAfterAll
-import org.scalatest.FunSuite
 import org.scalatest.exceptions.TestFailedException
 import scala.meta._
 import scala.meta.internal.io.FileIO
@@ -14,12 +13,13 @@ import scalafix.internal.testkit.EndOfLineAssertExtractor
 import scalafix.internal.testkit.MultiLineAssertExtractor
 import scalafix.v0.SemanticdbIndex
 import java.nio.file.Files
+import org.scalatest.funsuite.AnyFunSuite
 
 /** Construct a test suite for running semantic Scalafix rules. */
 abstract class SemanticRuleSuite(
     val props: TestkitProperties,
     val isSaveExpect: Boolean
-) extends FunSuite
+) extends AnyFunSuite
     with DiffAssertions
     with BeforeAndAfterAll { self =>
 
diff --git a/scalafix-testkit/src/main/scala/scalafix/testkit/SyntacticRuleSuite.scala b/scalafix-testkit/src/main/scala/scalafix/testkit/SyntacticRuleSuite.scala
index 8ce82d80a..5647f5650 100644
--- a/scalafix-testkit/src/main/scala/scalafix/testkit/SyntacticRuleSuite.scala
+++ b/scalafix-testkit/src/main/scala/scalafix/testkit/SyntacticRuleSuite.scala
@@ -1,17 +1,17 @@
 package scalafix.testkit
 
-import org.scalatest.FunSuiteLike
 import org.scalatest.Tag
 import scala.meta._
 import scalafix.syntax._
 import scalafix.v0._
+import org.scalatest.funsuite.AnyFunSuiteLike
 
 /** Utility to unit test syntactic rules
  *
  * @param rule the default rule to use from `check`/`checkDiff`.
  */
 class SyntacticRuleSuite(rule: Rule = Rule.empty)
-    extends FunSuiteLike
+    extends AnyFunSuiteLike
     with DiffAssertions {
 
   def check(name: String, original: String, expected: String): Unit = {