diff --git a/src/env.ts b/src/env.ts
index d0df7540..fd47d2c9 100644
--- a/src/env.ts
+++ b/src/env.ts
@@ -11,7 +11,11 @@ export function env (...presets: Preset[]): Environment {
   for (const preset of presets) {
     // Alias
     if (preset.alias) {
-      for (const from in preset.alias) {
+      // Sort aliases from specific to general (ie. fs/promises before fs)
+      const aliases = Object.keys(preset.alias).sort((a, b) =>
+        (b.split('/').length - a.split('/').length) || (b.length - a.length)
+      )
+      for (const from of aliases) {
         _env.alias[from] = preset.alias[from]
       }
     }