diff --git a/CHANGELOG.md b/CHANGELOG.md
index 426993f..02cc2a9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+## 3.6.0 - 2023-02-11
+
+### Added
+
+- `Innmind\OperatingSystem\Config::limitHttpConcurrencyTo()`
+
+### Changed
+
+- Requires `innmind/http-transport:~6.4`
+
 ## 3.5.0 - 2023-01-29
 
 ### Added
diff --git a/composer.json b/composer.json
index e002f0a..d3efe34 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
         "innmind/server-control": "~5.0",
         "innmind/filesystem": "~6.2",
         "innmind/socket": "~6.0",
-        "innmind/http-transport": "~6.3",
+        "innmind/http-transport": "~6.4",
         "innmind/time-warp": "~3.0",
         "innmind/signals": "~3.0",
         "innmind/file-watch": "~3.1",
diff --git a/src/Config.php b/src/Config.php
index 0bae116..e17d16a 100644
--- a/src/Config.php
+++ b/src/Config.php
@@ -9,29 +9,41 @@
     Capabilities,
     Streams,
 };
+use Innmind\Immutable\Maybe;
 
 final class Config
 {
     private CaseSensitivity $caseSensitivity;
     private Capabilities $streamCapabilities;
     private EnvironmentPath $path;
+    /** @var Maybe<positive-int> */
+    private Maybe $maxHttpConcurrency;
 
+    /**
+     * @param Maybe<positive-int> $maxHttpConcurrency
+     */
     private function __construct(
         CaseSensitivity $caseSensitivity,
         Capabilities $streamCapabilities,
         EnvironmentPath $path,
+        Maybe $maxHttpConcurrency,
     ) {
         $this->caseSensitivity = $caseSensitivity;
         $this->streamCapabilities = $streamCapabilities;
         $this->path = $path;
+        $this->maxHttpConcurrency = $maxHttpConcurrency;
     }
 
     public static function of(): self
     {
+        /** @var Maybe<positive-int> */
+        $maxHttpConcurrency = Maybe::nothing();
+
         return new self(
             CaseSensitivity::sensitive,
             Streams::fromAmbientAuthority(),
             EnvironmentPath::of(\getenv('PATH') ?: ''),
+            $maxHttpConcurrency,
         );
     }
 
@@ -44,6 +56,7 @@ public function caseInsensitiveFilesystem(): self
             CaseSensitivity::insensitive,
             $this->streamCapabilities,
             $this->path,
+            $this->maxHttpConcurrency,
         );
     }
 
@@ -56,6 +69,7 @@ public function useStreamCapabilities(Capabilities $capabilities): self
             $this->caseSensitivity,
             $capabilities,
             $this->path,
+            $this->maxHttpConcurrency,
         );
     }
 
@@ -68,6 +82,20 @@ public function withEnvironmentPath(EnvironmentPath $path): self
             $this->caseSensitivity,
             $this->streamCapabilities,
             $path,
+            $this->maxHttpConcurrency,
+        );
+    }
+
+    /**
+     * @param positive-int $max
+     */
+    public function limitHttpConcurrencyTo(int $max): self
+    {
+        return new self(
+            $this->caseSensitivity,
+            $this->streamCapabilities,
+            $this->path,
+            Maybe::just($max),
         );
     }
 
@@ -94,4 +122,14 @@ public function environmentPath(): EnvironmentPath
     {
         return $this->path;
     }
+
+    /**
+     * @internal
+     *
+     * @return Maybe<positive-int>
+     */
+    public function maxHttpConcurrency(): Maybe
+    {
+        return $this->maxHttpConcurrency;
+    }
 }
diff --git a/src/Remote/Generic.php b/src/Remote/Generic.php
index 7e7b7dc..82d0dc9 100644
--- a/src/Remote/Generic.php
+++ b/src/Remote/Generic.php
@@ -75,11 +75,20 @@ public function socket(Transport $transport, Authority $authority): Maybe
 
     public function http(): HttpTransport
     {
-        return $this->http ??= Curl::of(
+        if ($this->http) {
+            return $this->http;
+        }
+
+        $http = Curl::of(
             $this->clock,
             new Chunk,
             $this->config->streamCapabilities(),
         );
+
+        return $this->http = $this->config->maxHttpConcurrency()->match(
+            static fn($max) => $http->maxConcurrency($max),
+            static fn() => $http,
+        );
     }
 
     public function sql(Url $server): Connection