diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7e520c2..7af1262 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Changed
+
+- Requires `innmind/foundation:~1.9`
+
 ### Fixed
 
 - PHP `8.4` deprecation
diff --git a/composer.json b/composer.json
index b18cfa7..5423d51 100644
--- a/composer.json
+++ b/composer.json
@@ -16,10 +16,7 @@
     },
     "require": {
         "php": "~8.2",
-        "innmind/immutable": "~5.7",
-        "innmind/filesystem": "~7.5",
-        "innmind/url": "~4.3",
-        "innmind/operating-system": "~5.2"
+        "innmind/foundation": "~1.9"
     },
     "autoload": {
         "psr-4": {
diff --git a/src/Theme.php b/src/Theme.php
index af63aed..4da70a9 100644
--- a/src/Theme.php
+++ b/src/Theme.php
@@ -26,10 +26,11 @@ public function load(Filesystem $filesystem): Maybe
     {
         return $filesystem
             ->mount(Path::of(\dirname(__DIR__).'/themes/'))
-            ->get(Name::of(\sprintf(
+            ->maybe()
+            ->flatMap(fn($adapter) => $adapter->get(Name::of(\sprintf(
                 '%s.css',
                 $this->name,
-            )))
+            ))))
             ->keep(Instance::of(File::class))
             ->map(static fn($file) => $file->content());
     }