diff --git a/cabal.project b/cabal.project
index 6f20974..b34fe5f 100644
--- a/cabal.project
+++ b/cabal.project
@@ -1,4 +1,3 @@
 packages:
   .
   bench/
-  script/
diff --git a/script/GenCaseFold.hs b/script/GenCaseFold.hs
index b1da89b..1c203af 100644
--- a/script/GenCaseFold.hs
+++ b/script/GenCaseFold.hs
@@ -1,3 +1,7 @@
+#!/usr/bin/env cabal
+{- cabal:
+build-depends: base, containers, parser-regex, text
+-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE LambdaCase #-}
 
@@ -15,9 +19,6 @@ import qualified Data.Text as T
 import qualified Data.Text.IO.Utf8 as T
 import qualified Regex.Text as R
 
--- TODO: Switch to cabal script once it's on Hackage.
--- Otherwise it doesn't work: https://github.com/haskell/cabal/issues/8562
-
 main :: IO ()
 main = do
   args <- getArgs
diff --git a/script/case.sh b/script/case.sh
index 34fd6cf..c69905b 100755
--- a/script/case.sh
+++ b/script/case.sh
@@ -2,10 +2,12 @@
 set -eu
 
 echo "Downloading CaseFolding.txt..."
-curl --output script/script-data/CaseFolding.txt \
+curl --create-dirs \
+  --output script/script-data/CaseFolding.txt \
   https://www.unicode.org/Public/UCD/latest/ucd/CaseFolding.txt
 echo "Downloaded"
 echo "Generating hs..."
-cabal run script -- script/script-data/CaseFolding.txt \
+cabal run script/GenCaseFold.hs -- \
+  script/script-data/CaseFolding.txt \
   src/Regex/Internal/Generated/CaseFold.hs \
   Regex.Internal.Generated.CaseFold
diff --git a/script/script.cabal b/script/script.cabal
deleted file mode 100644
index b4bdb30..0000000
--- a/script/script.cabal
+++ /dev/null
@@ -1,17 +0,0 @@
-cabal-version:      2.4
-name:               script
-version:            0.1.0.0
-
-executable script
-    ghc-options: -Wall
-
-    build-depends:
-        base
-      , containers
-      , parser-regex
-      , text
-
-    hs-source-dirs: .
-    main-is: GenCaseFold.hs
-    default-language: Haskell2010
-    type: exitcode-stdio-1.0