diff --git a/yi-language.cabal b/yi-language.cabal
--- a/yi-language.cabal
+++ b/yi-language.cabal
@@ -3,7 +3,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           yi-language
-version:        0.13.3
+version:        0.13.4
 synopsis:       Collection of language-related Yi libraries.
 category:       Yi
 homepage:       https://github.com/yi-editor/yi#readme
@@ -42,7 +42,7 @@
     , unordered-containers >= 0.1.3 && < 0.3
     , microlens-platform
   build-tools:
-      alex >= 3.0.3 && < 3.2.0
+      alex >= 3.0.3 && < 3.2.0 || >= 3.2.1
   exposed-modules:
       Yi.Buffer.Basic
       Yi.Lexer.Alex