diff --git a/composer.json b/composer.json
index d57bff0..c4efcee 100644
--- a/composer.json
+++ b/composer.json
@@ -38,7 +38,7 @@
         "amphp/amp": "^2",
         "amphp/byte-stream": "^1.1",
         "amphp/cache": "^1",
-        "amphp/file": "^0.2",
+        "amphp/file": "^0.2 || ^0.3",
         "amphp/parser": "^1",
         "amphp/uri": "^0.1",
         "amphp/windows-registry": "^0.3",