diff --git a/composer.json b/composer.json
index 5a2f698a..f4cfb828 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
         "silverstripe/vendor-plugin": "^2",
         "symfony/filesystem": "^7.0",
         "intervention/image": "^3.7",
-        "league/flysystem": "^3.9.0"
+        "league/flysystem": "^3.15.0"
     },
     "require-dev": {
         "silverstripe/recipe-testing": "^4",