diff --git a/build.sbt b/build.sbt
index ded58b20..4b3bd10b 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,5 +1,5 @@
 val catsVersion = "2.6.0"
-val catsEffectVersion = "2.5.0"
+val catsEffectVersion = "3.1.0"
 val utilVersion = "21.2.0"
 val finagleVersion = "21.2.0"
 
diff --git a/effect/src/main/scala/io/catbird/util/effect/FutureInstances.scala b/effect/src/main/scala/io/catbird/util/effect/FutureInstances.scala
index 89e4eb58..47be1be3 100644
--- a/effect/src/main/scala/io/catbird/util/effect/FutureInstances.scala
+++ b/effect/src/main/scala/io/catbird/util/effect/FutureInstances.scala
@@ -1,14 +1,15 @@
 package io.catbird.util.effect
 
-import cats.effect.{ Bracket, ExitCase }
+import cats.effect.ExitCase
 import com.twitter.util.{ Future, Monitor }
 import io.catbird.util.FutureMonadError
 import java.lang.Throwable
 import scala.Unit
+import cats.effect.MonadCancel
 
 trait FutureInstances {
-  implicit final val futureBracketInstance: Bracket[Future, Throwable] =
-    new FutureMonadError with Bracket[Future, Throwable] {
+  implicit final val futureBracketInstance: MonadCancel[Future, Throwable] =
+    new FutureMonadError with MonadCancel[Future, Throwable] {
       final def bracketCase[A, B](acquire: Future[A])(use: A => Future[B])(
         release: (A, ExitCase[Throwable]) => Future[Unit]
       ): Future[B] =
diff --git a/effect/src/main/scala/io/catbird/util/effect/RerunnableContextShift.scala b/effect/src/main/scala/io/catbird/util/effect/RerunnableContextShift.scala
index 761d2b98..876a7543 100644
--- a/effect/src/main/scala/io/catbird/util/effect/RerunnableContextShift.scala
+++ b/effect/src/main/scala/io/catbird/util/effect/RerunnableContextShift.scala
@@ -1,6 +1,5 @@
 package io.catbird.util.effect
 
-import cats.effect.ContextShift
 import com.twitter.util.{ Future, FuturePool, Promise }
 import io.catbird.util.Rerunnable
 
diff --git a/effect/src/main/scala/io/catbird/util/effect/RerunnableTimer.scala b/effect/src/main/scala/io/catbird/util/effect/RerunnableTimer.scala
index 67a510f5..c27fc151 100644
--- a/effect/src/main/scala/io/catbird/util/effect/RerunnableTimer.scala
+++ b/effect/src/main/scala/io/catbird/util/effect/RerunnableTimer.scala
@@ -1,12 +1,13 @@
 package io.catbird.util.effect
 
-import cats.effect.{ Clock, Timer }
+import cats.effect.Clock
 import io.catbird.util.Rerunnable
 import com.twitter.util.Future
 import com.twitter.util
 import scala.Unit
 
 import scala.concurrent.duration.FiniteDuration
+import cats.effect.Temporal
 
 /**
  * Can be used to construct a `cats.effect.Timer` instance for `Rerunnable` which let's you delay execution or
@@ -35,7 +36,7 @@ object RerunnableTimer {
   }
 }
 
-final private[effect] class RerunnableTimer private (implicit underlyingTimer: util.Timer) extends Timer[Rerunnable] {
+final private[effect] class RerunnableTimer private (implicit underlyingTimer: util.Timer) extends Temporal[Rerunnable] {
 
   override val clock: Clock[Rerunnable] = RerunnableClock()
 
diff --git a/effect/src/main/scala/io/catbird/util/effect/package.scala b/effect/src/main/scala/io/catbird/util/effect/package.scala
index 539005e7..b325064f 100644
--- a/effect/src/main/scala/io/catbird/util/effect/package.scala
+++ b/effect/src/main/scala/io/catbird/util/effect/package.scala
@@ -1,17 +1,18 @@
 package io.catbird.util
 
-import cats.effect.{ Async, ContextShift, ExitCase, IO }
+import cats.effect.{ Async, ExitCase, IO }
 import com.twitter.util.{ Future, Return, Throw, Try }
 import java.lang.Throwable
 
 import scala.util.{ Left, Right }
+import cats.effect.Spawn
 
 package object effect extends FutureInstances with RerunnableInstances {
 
   /**
    * Converts the `Future` to `F` without changing the underlying execution (same thread pool!).
    */
-  def futureToAsync[F[_], A](fa: => Future[A])(implicit F: Async[F]): F[A] = F.async { k =>
+  def futureToAsync[F[_], A](fa: => Future[A])(implicit F: Async[F]): F[A] = F.async_ { k =>
     fa.respond {
       case Return(a)  => k(Right[Throwable, A](a))
       case Throw(err) => k(Left[Throwable, A](err))
@@ -26,8 +27,8 @@ package object effect extends FutureInstances with RerunnableInstances {
    * the `Future` is running on a thread pool controlled by the library (e.g. the underlying Netty pool).
    * It also is closer to the behavior of `IO.fromFuture` for Scala futures which also shifts back.
    */
-  def futureToAsyncAndShift[F[_], A](fa: => Future[A])(implicit F: Async[F], CS: ContextShift[F]): F[A] =
-    F.guarantee(futureToAsync[F, A](fa))(CS.shift)
+  def futureToAsyncAndShift[F[_], A](fa: => Future[A])(implicit F: Async[F]): F[A] =
+    F.guarantee(futureToAsync[F, A](fa), Spawn[F].cede)
 
   /**
    * Converts the `Rerunnable` to `F` without changing the underlying execution (same thread pool!).
@@ -39,7 +40,7 @@ package object effect extends FutureInstances with RerunnableInstances {
    * The same as `rerunnableToIO` but doesn't stay on the thread pool of the `Rerunnable` and instead shifts execution
    * back to the one provided by `ContextShift[F]` (which is usually the default one).
    */
-  final def rerunnableToIOAndShift[A](fa: Rerunnable[A])(implicit CS: ContextShift[IO]): IO[A] =
+  final def rerunnableToIOAndShift[A](fa: Rerunnable[A]): IO[A] =
     futureToAsyncAndShift[IO, A](fa.run)
 
   /**
diff --git a/effect/src/test/scala/io/catbird/util/effect/ContextShiftingSuite.scala b/effect/src/test/scala/io/catbird/util/effect/ContextShiftingSuite.scala
index f96b013a..19ae3f1f 100644
--- a/effect/src/test/scala/io/catbird/util/effect/ContextShiftingSuite.scala
+++ b/effect/src/test/scala/io/catbird/util/effect/ContextShiftingSuite.scala
@@ -1,6 +1,6 @@
 package io.catbird.util.effect
 
-import cats.effect.{ ContextShift, IO }
+import cats.effect.IO
 import com.twitter.util.{ ExecutorServiceFuturePool, Future, FuturePool }
 import org.scalatest.Outcome
 import org.scalatest.funsuite.FixtureAnyFunSuite
diff --git a/effect/src/test/scala/io/catbird/util/effect/RerunnableContextShiftSuite.scala b/effect/src/test/scala/io/catbird/util/effect/RerunnableContextShiftSuite.scala
index b58bba20..30638863 100644
--- a/effect/src/test/scala/io/catbird/util/effect/RerunnableContextShiftSuite.scala
+++ b/effect/src/test/scala/io/catbird/util/effect/RerunnableContextShiftSuite.scala
@@ -1,6 +1,6 @@
 package io.catbird.util.effect
 
-import cats.effect.{ ContextShift, IO, Sync }
+import cats.effect.{ IO, Sync }
 import com.twitter.util.{ Await, Future, FuturePool }
 import io.catbird.util.Rerunnable
 import org.scalatest.Outcome
diff --git a/effect/src/test/scala/io/catbird/util/effect/RerunnableSuite.scala b/effect/src/test/scala/io/catbird/util/effect/RerunnableSuite.scala
index ccc2d765..7d27a020 100644
--- a/effect/src/test/scala/io/catbird/util/effect/RerunnableSuite.scala
+++ b/effect/src/test/scala/io/catbird/util/effect/RerunnableSuite.scala
@@ -3,7 +3,7 @@ package io.catbird.util.effect
 import cats.effect.laws.discipline.EffectTests
 import cats.effect.laws.discipline.arbitrary.catsEffectLawsArbitraryForIO
 import cats.effect.laws.util.{ TestContext, TestInstances }
-import cats.effect.{ Bracket, IO }
+import cats.effect.IO
 import cats.instances.either._
 import cats.instances.int._
 import cats.instances.tuple._
@@ -15,6 +15,7 @@ import io.catbird.util.{ ArbitraryInstances, Rerunnable }
 import org.scalatest.funsuite.AnyFunSuite
 import org.scalatest.prop.Configuration
 import org.typelevel.discipline.scalatest.FunSuiteDiscipline
+import cats.effect.MonadCancel
 
 class RerunnableSuite
     extends AnyFunSuite
@@ -35,7 +36,7 @@ class RerunnableSuite
     var monitoredException: Throwable = null
     val monitor = Monitor.mk { case e => monitoredException = e; true; }
 
-    val rerunnable = Bracket[Rerunnable, Throwable]
+    val rerunnable = MonadCancel[Rerunnable, Throwable]
       .bracket(Rerunnable.Unit)(_ => Rerunnable.raiseError(useException))(_ => Rerunnable.raiseError(releaseException))
       .liftToTry
 
diff --git a/effect/src/test/scala/io/catbird/util/effect/RerunnableTimerSuite.scala b/effect/src/test/scala/io/catbird/util/effect/RerunnableTimerSuite.scala
index 24bd2a64..eec80f14 100644
--- a/effect/src/test/scala/io/catbird/util/effect/RerunnableTimerSuite.scala
+++ b/effect/src/test/scala/io/catbird/util/effect/RerunnableTimerSuite.scala
@@ -1,6 +1,5 @@
 package io.catbird.util.effect
 
-import cats.effect.Timer
 import org.scalatest.Outcome
 import org.scalatest.funsuite.FixtureAnyFunSuite
 import com.twitter.util
@@ -8,6 +7,7 @@ import com.twitter.util.{ Await, Future }
 import io.catbird.util.Rerunnable
 
 import scala.concurrent.duration._
+import cats.effect.Temporal
 
 class RerunnableTimerSuite extends FixtureAnyFunSuite {
 
@@ -16,13 +16,13 @@ class RerunnableTimerSuite extends FixtureAnyFunSuite {
   }
 
   test("A timer can be used to delay execution") { f =>
-    implicit val timer: Timer[Rerunnable] = RerunnableTimer(f.twitterTimer)
+    implicit val timer: Temporal[Rerunnable] = RerunnableTimer(f.twitterTimer)
 
     val result = Await.result(
       Future.selectIndex(
         Vector(
           for {
-            _ <- Timer[Rerunnable].sleep(100.milliseconds).run
+            _ <- Temporal[Rerunnable].sleep(100.milliseconds).run
             r <- Future.value("slow")
           } yield r,
           Future.value("fast").delayed(util.Duration.fromMilliseconds(50))(f.twitterTimer)