diff --git a/core/src/main/scala/io/opencensus/scala/stats/Tag.scala b/core/src/main/scala/io/opencensus/scala/stats/Tag.scala
index 95ccbeb..5a73721 100644
--- a/core/src/main/scala/io/opencensus/scala/stats/Tag.scala
+++ b/core/src/main/scala/io/opencensus/scala/stats/Tag.scala
@@ -1,7 +1,4 @@
 package io.opencensus.scala.stats
-
-import cats.instances.list._
-import cats.instances.try_._
 import cats.syntax.traverse._
 import io.opencensus.tags.{TagKey, TagValue}
 
diff --git a/http4s/src/main/scala/io/opencensus/scala/http4s/TracingClient.scala b/http4s/src/main/scala/io/opencensus/scala/http4s/TracingClient.scala
index 440db9b..e24e99a 100644
--- a/http4s/src/main/scala/io/opencensus/scala/http4s/TracingClient.scala
+++ b/http4s/src/main/scala/io/opencensus/scala/http4s/TracingClient.scala
@@ -1,7 +1,7 @@
 package io.opencensus.scala.http4s
 
 import cats.effect.{Effect, Resource}
-import cats.implicits._
+import cats.syntax.all._
 import io.opencensus.scala.Tracing
 import io.opencensus.scala.http.propagation.Propagation
 import io.opencensus.scala.http.{HttpAttributes => BaseHttpAttributes}
diff --git a/http4s/src/main/scala/io/opencensus/scala/http4s/TracingMiddleware.scala b/http4s/src/main/scala/io/opencensus/scala/http4s/TracingMiddleware.scala
index 303ba4e..a28b41c 100644
--- a/http4s/src/main/scala/io/opencensus/scala/http4s/TracingMiddleware.scala
+++ b/http4s/src/main/scala/io/opencensus/scala/http4s/TracingMiddleware.scala
@@ -3,7 +3,7 @@ package io.opencensus.scala.http4s
 import cats._
 import cats.data.{Kleisli, OptionT}
 import cats.effect.Effect
-import cats.implicits._
+import cats.syntax.all._
 import io.opencensus.scala.Tracing
 import io.opencensus.scala.http.propagation.Propagation
 import io.opencensus.scala.http.{
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index f44a160..a743c93 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -10,7 +10,7 @@ object Dependencies {
   val AkkaVersion         = "2.6.1"
   val Http4sVersion       = "0.21.3"
   val Elastic4sVersion    = "7.3.5"
-  val CatsVersion         = "2.1.1"
+  val CatsVersion         = "2.2.0"
   val DoobieVersion       = "0.9.0"
 
   lazy val opencensus = Seq(