diff --git a/src/Types.hs b/src/Types.hs
index b0e2fb5..80b74a4 100644
--- a/src/Types.hs
+++ b/src/Types.hs
@@ -16,7 +16,6 @@ module Types
     ) where
 
 import Data.Int (Int64)
-import Data.Either (Either)
 import Data.Void (Void)
 
 type Symbol = String