diff --git a/dependencies.sbt b/dependencies.sbt
index 40c0884..036282d 100644
--- a/dependencies.sbt
+++ b/dependencies.sbt
@@ -5,15 +5,15 @@ ThisBuild / crossScalaVersions += "2.12.11"
 
 ThisBuild / libraryDependencies ++=
   "com.github.pathikrit" %% "better-files" % "3.8.0" ::
-    "org.typelevel" %% "cats-core" % "2.1.1" ::
+    "org.typelevel" %% "cats-core" % "2.3.1" ::
     "org.scalactic" %% "scalactic" % "3.1.0" ::
     Nil
 
 ThisBuild / libraryDependencies ++=
   "com.softwaremill.diffx" %% "diffx-scalatest" % "0.3.28" % Test ::
     "com.github.alexarchambault" %% "scalacheck-shapeless_1.14" % "1.2.3" % Test ::
-    "org.typelevel" %% "cats-laws" % "2.1.1" % Test ::
-    "org.typelevel" %% "cats-testkit" % "2.1.1" % Test ::
+    "org.typelevel" %% "cats-laws" % "2.3.1" % Test ::
+    "org.typelevel" %% "cats-testkit" % "2.3.1" % Test ::
     "org.scalacheck" %% "scalacheck" % "1.14.2" % Test ::
     "org.scalamock" %% "scalamock" % "4.4.0" % Test ::
     "org.scalatest" %% "scalatest" % "3.1.0" % Test ::
diff --git a/modules/api/src/main/scala/ahlers/b2/Credential.scala b/modules/api/src/main/scala/ahlers/b2/Credential.scala
index c6b89f9..cf20203 100644
--- a/modules/api/src/main/scala/ahlers/b2/Credential.scala
+++ b/modules/api/src/main/scala/ahlers/b2/Credential.scala
@@ -1,7 +1,6 @@
 package ahlers.b2
 
 import cats.data._
-import cats.instances.option._
 import cats.syntax.apply._
 import cats.syntax.foldable._
 import cats.syntax.option._