diff --git a/modules/backend/src/main/scala/docspell/backend/BackendApp.scala b/modules/backend/src/main/scala/docspell/backend/BackendApp.scala
index 3881d537..4aea530f 100644
--- a/modules/backend/src/main/scala/docspell/backend/BackendApp.scala
+++ b/modules/backend/src/main/scala/docspell/backend/BackendApp.scala
@@ -116,12 +116,11 @@ object BackendApp {
 
   def apply[F[_]: Async](
       cfg: Config,
-      connectEC: ExecutionContext,
-      httpClientEc: ExecutionContext
+      connectEC: ExecutionContext
   )(ftsFactory: Client[F] => Resource[F, FtsClient[F]]): Resource[F, BackendApp[F]] =
     for {
       store <- Store.create(cfg.jdbc, cfg.files.chunkSize, connectEC)
-      httpClient <- BlazeClientBuilder[F](httpClientEc).resource
+      httpClient <- BlazeClientBuilder[F].resource
       ftsClient <- ftsFactory(httpClient)
       backend <- create(cfg, store, httpClient, ftsClient)
     } yield backend
diff --git a/modules/backend/src/main/scala/docspell/backend/ops/OJoex.scala b/modules/backend/src/main/scala/docspell/backend/ops/OJoex.scala
index fb35267c..d4aaf956 100644
--- a/modules/backend/src/main/scala/docspell/backend/ops/OJoex.scala
+++ b/modules/backend/src/main/scala/docspell/backend/ops/OJoex.scala
@@ -6,8 +6,6 @@
 
 package docspell.backend.ops
 
-import scala.concurrent.ExecutionContext
-
 import cats.data.OptionT
 import cats.effect._
 import cats.implicits._
@@ -42,10 +40,7 @@ object OJoex {
         } yield cancel.success).getOrElse(false)
     })
 
-  def create[F[_]: Async](
-      ec: ExecutionContext,
-      store: Store[F]
-  ): Resource[F, OJoex[F]] =
-    JoexClient.resource(ec).flatMap(client => apply(client, store))
+  def create[F[_]: Async](store: Store[F]): Resource[F, OJoex[F]] =
+    JoexClient.resource.flatMap(client => apply(client, store))
 
 }
diff --git a/modules/common/src/main/scala/docspell/common/Pools.scala b/modules/common/src/main/scala/docspell/common/Pools.scala
index 20d2771c..a704bdbb 100644
--- a/modules/common/src/main/scala/docspell/common/Pools.scala
+++ b/modules/common/src/main/scala/docspell/common/Pools.scala
@@ -10,7 +10,7 @@ import scala.concurrent.ExecutionContext
 
 /** Captures thread pools to use in an application. */
 case class Pools(
-    connectEC: ExecutionContext,
-    httpClientEC: ExecutionContext,
-    restEC: ExecutionContext
+    connectEC: ExecutionContext
+//    httpClientEC: ExecutionContext,
+//    restEC: ExecutionContext
 )
diff --git a/modules/joex/src/main/scala/docspell/joex/JoexAppImpl.scala b/modules/joex/src/main/scala/docspell/joex/JoexAppImpl.scala
index 0f13bab4..86c65efc 100644
--- a/modules/joex/src/main/scala/docspell/joex/JoexAppImpl.scala
+++ b/modules/joex/src/main/scala/docspell/joex/JoexAppImpl.scala
@@ -116,11 +116,10 @@ object JoexAppImpl {
   def create[F[_]: Async](
       cfg: Config,
       termSignal: SignallingRef[F, Boolean],
-      connectEC: ExecutionContext,
-      clientEC: ExecutionContext
+      connectEC: ExecutionContext
   ): Resource[F, JoexApp[F]] =
     for {
-      httpClient <- BlazeClientBuilder[F](clientEC).resource
+      httpClient <- BlazeClientBuilder[F].resource
       client = JoexClient(httpClient)
       store <- Store.create(cfg.jdbc, cfg.files.chunkSize, connectEC)
       queue <- JobQueue(store)
diff --git a/modules/joex/src/main/scala/docspell/joex/JoexServer.scala b/modules/joex/src/main/scala/docspell/joex/JoexServer.scala
index 202c830f..8c4773dc 100644
--- a/modules/joex/src/main/scala/docspell/joex/JoexServer.scala
+++ b/modules/joex/src/main/scala/docspell/joex/JoexServer.scala
@@ -33,9 +33,7 @@ object JoexServer {
     val app = for {
       signal <- Resource.eval(SignallingRef[F, Boolean](false))
       exitCode <- Resource.eval(Ref[F].of(ExitCode.Success))
-      joexApp <-
-        JoexAppImpl
-          .create[F](cfg, signal, pools.connectEC, pools.httpClientEC)
+      joexApp <- JoexAppImpl.create[F](cfg, signal, pools.connectEC)
 
       httpApp = Router(
         "/api/info" -> InfoRoutes(cfg),
@@ -50,7 +48,7 @@ object JoexServer {
     Stream
       .resource(app)
       .flatMap(app =>
-        BlazeServerBuilder[F](pools.restEC)
+        BlazeServerBuilder[F]
           .bindHttp(cfg.bind.port, cfg.bind.address)
           .withHttpApp(app.httpApp)
           .withoutBanner
diff --git a/modules/joex/src/main/scala/docspell/joex/Main.scala b/modules/joex/src/main/scala/docspell/joex/Main.scala
index a288c0b5..fa20b0e5 100644
--- a/modules/joex/src/main/scala/docspell/joex/Main.scala
+++ b/modules/joex/src/main/scala/docspell/joex/Main.scala
@@ -60,11 +60,7 @@ object Main extends IOApp {
       logger.warn(">>>>>   Docspell is running in DEV mode!   <<<<<")
     }
 
-    val pools = for {
-      cec <- connectEC
-      bec <- blockingEC
-      rec <- restserverEC
-    } yield Pools(cec, bec, rec)
+    val pools = connectEC.map(Pools.apply)
     pools.use(p =>
       JoexServer
         .stream[IO](cfg, p)
diff --git a/modules/joex/src/main/scala/docspell/joex/hk/CheckNodesTask.scala b/modules/joex/src/main/scala/docspell/joex/hk/CheckNodesTask.scala
index ebcf49f5..ecba752b 100644
--- a/modules/joex/src/main/scala/docspell/joex/hk/CheckNodesTask.scala
+++ b/modules/joex/src/main/scala/docspell/joex/hk/CheckNodesTask.scala
@@ -26,7 +26,7 @@ object CheckNodesTask {
         for {
           _ <- ctx.logger.info("Check nodes reachability")
           ec = scala.concurrent.ExecutionContext.global
-          _ <- BlazeClientBuilder[F](ec).resource.use { client =>
+          _ <- BlazeClientBuilder[F].withExecutionContext(ec).resource.use { client =>
             checkNodes(ctx, client)
           }
           _ <- ctx.logger.info(
diff --git a/modules/joexapi/src/main/scala/docspell/joexapi/client/JoexClient.scala b/modules/joexapi/src/main/scala/docspell/joexapi/client/JoexClient.scala
index df2e5065..d6a6a5c7 100644
--- a/modules/joexapi/src/main/scala/docspell/joexapi/client/JoexClient.scala
+++ b/modules/joexapi/src/main/scala/docspell/joexapi/client/JoexClient.scala
@@ -6,8 +6,6 @@
 
 package docspell.joexapi.client
 
-import scala.concurrent.ExecutionContext
-
 import cats.effect._
 import cats.implicits._
 
@@ -69,6 +67,6 @@ object JoexClient {
         Uri.unsafeFromString(u.asString)
     }
 
-  def resource[F[_]: Async](ec: ExecutionContext): Resource[F, JoexClient[F]] =
-    BlazeClientBuilder[F](ec).resource.map(apply[F])
+  def resource[F[_]: Async]: Resource[F, JoexClient[F]] =
+    BlazeClientBuilder[F].resource.map(apply[F])
 }
diff --git a/modules/restserver/src/main/scala/docspell/restserver/Main.scala b/modules/restserver/src/main/scala/docspell/restserver/Main.scala
index d8d838ac..7d441783 100644
--- a/modules/restserver/src/main/scala/docspell/restserver/Main.scala
+++ b/modules/restserver/src/main/scala/docspell/restserver/Main.scala
@@ -55,12 +55,7 @@ object Main extends IOApp {
       cfg.baseUrl,
       Some(cfg.fullTextSearch.solr.url).filter(_ => cfg.fullTextSearch.enabled)
     )
-    val pools = for {
-      cec <- connectEC
-      bec <- blockingEC
-      rec <- restserverEC
-    } yield Pools(cec, bec, rec)
-
+    val pools = connectEC.map(Pools.apply)
     logger.info(s"\n${banner.render("***>")}")
     if (EnvMode.current.isDev) {
       logger.warn(">>>>>   Docspell is running in DEV mode!   <<<<<")
diff --git a/modules/restserver/src/main/scala/docspell/restserver/RestAppImpl.scala b/modules/restserver/src/main/scala/docspell/restserver/RestAppImpl.scala
index fbfbd0e1..74b6a303 100644
--- a/modules/restserver/src/main/scala/docspell/restserver/RestAppImpl.scala
+++ b/modules/restserver/src/main/scala/docspell/restserver/RestAppImpl.scala
@@ -32,11 +32,10 @@ object RestAppImpl {
 
   def create[F[_]: Async](
       cfg: Config,
-      connectEC: ExecutionContext,
-      httpClientEc: ExecutionContext
+      connectEC: ExecutionContext
   ): Resource[F, RestApp[F]] =
     for {
-      backend <- BackendApp(cfg.backend, connectEC, httpClientEc)(
+      backend <- BackendApp(cfg.backend, connectEC)(
         createFtsClient[F](cfg)
       )
       app = new RestAppImpl[F](cfg, backend)
diff --git a/modules/restserver/src/main/scala/docspell/restserver/RestServer.scala b/modules/restserver/src/main/scala/docspell/restserver/RestServer.scala
index 9881fdcc..f64f0a93 100644
--- a/modules/restserver/src/main/scala/docspell/restserver/RestServer.scala
+++ b/modules/restserver/src/main/scala/docspell/restserver/RestServer.scala
@@ -34,10 +34,8 @@ object RestServer {
 
     val templates = TemplateRoutes[F](cfg)
     val app = for {
-      restApp <-
-        RestAppImpl
-          .create[F](cfg, pools.connectEC, pools.httpClientEC)
-      httpClient <- BlazeClientBuilder[F](pools.httpClientEC).resource
+      restApp <- RestAppImpl.create[F](cfg, pools.connectEC)
+      httpClient <- BlazeClientBuilder[F].resource
       httpApp = Router(
         "/api/info" -> routes.InfoRoutes(),
         "/api/v1/open/" -> openRoutes(cfg, httpClient, restApp),
@@ -64,7 +62,7 @@ object RestServer {
     Stream
       .resource(app)
       .flatMap(httpApp =>
-        BlazeServerBuilder[F](pools.restEC)
+        BlazeServerBuilder[F]
           .bindHttp(cfg.bind.port, cfg.bind.address)
           .withHttpApp(httpApp)
           .withoutBanner
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index c97cfd87..c53bcc6c 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -19,7 +19,7 @@ object Dependencies {
   val Fs2Version = "3.1.6"
   val Fs2CronVersion = "0.7.1"
   val H2Version = "1.4.200"
-  val Http4sVersion = "0.23.4"
+  val Http4sVersion = "0.23.6"
   val Icu4jVersion = "69.1"
   val javaOtpVersion = "0.3.0"
   val JsoupVersion = "1.14.3"