diff --git a/build.sbt b/build.sbt
index a1fe477e..0024aee2 100644
--- a/build.sbt
+++ b/build.sbt
@@ -55,6 +55,7 @@ val commonSettings = List(
     Libraries.fs2Core.value,
     Libraries.kittens.value,
     Libraries.ip4sCore.value,
+    Libraries.log4catsNoop,
     Libraries.monocleCore.value,
     Libraries.catsLaws         % Test,
     Libraries.monocleLaw       % Test,
diff --git a/modules/core/src/main/scala/trading/core/http/Ember.scala b/modules/core/src/main/scala/trading/core/http/Ember.scala
index eaf88ec9..f0264f3b 100644
--- a/modules/core/src/main/scala/trading/core/http/Ember.scala
+++ b/modules/core/src/main/scala/trading/core/http/Ember.scala
@@ -4,6 +4,7 @@ import cats.effect.kernel.{ Async, Resource }
 import cats.effect.std.Console
 import cats.syntax.all.*
 import com.comcast.ip4s.*
+import fs2.io.net.Network
 import org.http4s.*
 import org.http4s.ember.server.EmberServerBuilder
 import org.http4s.implicits.*
@@ -12,12 +13,15 @@ import org.http4s.server.Server
 import org.http4s.server.middleware.Metrics
 import org.http4s.server.defaults.Banner
 import org.http4s.server.websocket.WebSocketBuilder
+import org.typelevel.log4cats.LoggerFactory
+import org.typelevel.log4cats.noop.NoOpFactory
 
 object Ember:
   private def showBanner[F[_]: Console](s: Server): F[Unit] =
     Console[F].println(s"\n${Banner.mkString("\n")}\nHTTP Server started at ${s.address}")
 
-  private def make[F[_]: Async](port: Port) =
+  private def make[F[_]: Async: Network](port: Port) =
+    given LoggerFactory[F] = NoOpFactory[F]
     EmberServerBuilder
       .default[F]
       .withHost(host"0.0.0.0")
@@ -29,7 +33,7 @@ object Ember:
       ops <- Prometheus.metricsOps[F](prt.collectorRegistry)
     yield rts => Metrics[F](ops)(prt.routes <+> rts)
 
-  def websocket[F[_]: Async: Console](
+  def websocket[F[_]: Async: Console: Network](
       port: Port,
       f: WebSocketBuilder[F] => HttpRoutes[F]
   ): Resource[F, Server] =
@@ -42,7 +46,7 @@ object Ember:
         .evalTap(showBanner[F])
     }
 
-  def routes[F[_]: Async: Console](
+  def routes[F[_]: Async: Console: Network](
       port: Port,
       routes: HttpRoutes[F]
   ): Resource[F, Server] =
@@ -53,7 +57,9 @@ object Ember:
         .evalTap(showBanner[F])
     }
 
-  def default[F[_]: Async: Console](port: Port): Resource[F, Server] =
+  def default[F[_]: Async: Console: Network](
+      port: Port
+  ): Resource[F, Server] =
     metrics[F].flatMap { mid =>
       make[F](port)
         .withHttpApp(mid(HealthRoutes[F].routes).orNotFound)
diff --git a/modules/x-qa/src/test/scala/smokey/Smokey.scala b/modules/x-qa/src/test/scala/smokey/Smokey.scala
index 333ad757..7a34a641 100644
--- a/modules/x-qa/src/test/scala/smokey/Smokey.scala
+++ b/modules/x-qa/src/test/scala/smokey/Smokey.scala
@@ -14,6 +14,7 @@ import trading.lib.{ Producer, Shard }
 import trading.ws.*
 
 import cats.effect.*
+import cats.effect.syntax.*
 import cats.syntax.all.*
 import dev.profunktor.pulsar.{ Config, Producer as PulsarProducer, Pulsar }
 import fs2.Stream
@@ -31,7 +32,7 @@ object Smokey extends IOSuite:
   val connectReq = WSRequest(uri"ws://localhost:9000/v1/ws")
 
   override def sharedResource: Resource[IO, Res] =
-    (Pulsar.make[IO](pulsarCfg.url), JdkWSClient.simple[IO]).tupled
+    (Pulsar.make[IO](pulsarCfg.url), JdkWSClient.simple[IO].toResource).tupled
 
   val symbols1: List[WsIn] = List(EURUSD, USDCAD, GBPUSD).map(WsIn.Subscribe(_))
   val symbols2: List[WsIn] = List(EURPLN, CHFEUR).map(WsIn.Subscribe(_))
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index d349c9f3..89053bbc 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -12,12 +12,13 @@ object Dependencies {
     val flyway        = "8.5.13"
     val fs2Core       = "3.9.1"
     val fs2Kafka      = "3.0.1"
-    val http4s        = "1.0.0-M39"
+    val http4s        = "1.0.0-M40"
     val http4sMetrics = "1.0.0-M38"
-    val http4sWs      = "1.0.0-M3"
+    val http4sWs      = "1.0.0-M9"
     val ip4s          = "3.3.0"
     val iron          = "2.2.1"
     val kittens       = "3.0.0"
+    val log4cats      = "2.6.0"
     val monocle       = "3.2.0"
     val natchez       = "0.3.3"
     val natchezHttp4s = "0.5.0"
@@ -30,7 +31,7 @@ object Dependencies {
     val tyrian      = "0.6.1"
 
     val scalacheck = "1.17.0"
-    val weaver     = "0.8.2"
+    val weaver     = "0.8.3"
 
     val organizeImports = "0.6.0"
     val zerowaste       = "0.2.12"
@@ -82,6 +83,9 @@ object Dependencies {
 
     val odin = "com.github.valskalla" %% "odin-core" % V.odin
 
+    // only for ember
+    val log4catsNoop = "org.typelevel" %% "log4cats-noop" % V.log4cats
+
     // webapp
     val scalajsTime = Def.setting("io.github.cquiroz" %%% "scala-java-time" % V.scalajsTime)
     val tyrian      = Def.setting("io.indigoengine" %%% "tyrian" % V.tyrian)