diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,14 @@
 # Changelog
 
 
+## 1.1.0.0
+
+### Changed
+
+- Allow newer versions of base and text to support GHC up to 9.8.
+- Deprecate Data.Text.IO.Utf8.
+
+
 ## 1.0.2.4
 
 ### Changed
@@ -8,7 +16,6 @@
 - Allow base 4.17, 4.18 (GHC 9.4, 9.6).
 - Allow text<2.1
 
-## 1.0.2.2
 
 ## 1.0.2.3
 
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -45,10 +45,12 @@
 If you are going to read a text file (to be precise, if you are going to open
 a file in text mode), you’ll probably use `withFile`, `openFile`, or `readFile`.
 Grab the first two from `System.IO.Utf8` or the latter from `Data.Text.IO.Utf8`.
+Starting from `text-2.1`, `Data.Text.IO.Utf8` is available in the `text` package
+itself, hence this module in `with-utf8` is now deprecated.
 
 _Note: it is best to import these modules qualified._
 
-_Note: there is no `System.IO.Utf8.readFile` because it’s 2020 and
+_Note: there is no `System.IO.Utf8.readFile` because it’s 2024 and
 you should not read `String`s from files._
 
 All these functions will make sure that the content will be treated as if it
@@ -72,6 +74,8 @@
 When writing a file either open it using `withFile`/`openFile` from
 `System.IO.Utf8` or write to it directly with `writeFile` from
 `Data.Text.IO.Utf8`.
+Starting from `text-2.1`, `Data.Text.IO.Utf8` is available in the `text` package
+itself, hence this module in `with-utf8` is now deprecated.
 
 _Note: it is best to import these modules qualified._
 
diff --git a/app/utf8-troubleshoot/Main.hs b/app/utf8-troubleshoot/Main.hs
--- a/app/utf8-troubleshoot/Main.hs
+++ b/app/utf8-troubleshoot/Main.hs
@@ -40,6 +40,8 @@
 
 import qualified Prelude as P
 
+-- See https://github.com/ndmitchell/hlint/commit/505a4d57b972f3ba605ad7a59721cef1f3d98a84
+{-# ANN module "HLint: ignore Unused LANGUAGE pragma" #-}
 
 -- | Encode a 'String' to be safe to print in ASCII-only.
 protect :: String -> String
@@ -70,10 +72,10 @@
     showEnvVar "TERM"
 
     -- Nix stuff
-    let builtNix = isJust ($$(envQ @String "NIX_BUILD_TOP"))
+    let builtNix = isJust $$(envQ @String "NIX_BUILD_TOP")
     when builtNix $ do
       putStrLn "  * Built with Nix"
-    let builtNixShell = isJust ($$(envQ @String "IN_NIX_SHELL"))
+    let builtNixShell = isJust $$(envQ @String "IN_NIX_SHELL")
     when builtNixShell $ do
       putStrLn "  * Built in nix-shell"
     inNixShell <- isJust <$> lookupEnv "IN_NIX_SHELL"
diff --git a/lib/Data/Text/IO/Utf8.hs b/lib/Data/Text/IO/Utf8.hs
--- a/lib/Data/Text/IO/Utf8.hs
+++ b/lib/Data/Text/IO/Utf8.hs
@@ -8,6 +8,7 @@
 -- Wrappers around simple file reading/writing functions from the
 -- @text@ package that reset the handle encoding to UTF-8.
 module Data.Text.IO.Utf8
+  {-# DEPRECATED "Use Data.Text.IO.Utf8 from the text package instead" #-}
   ( readFile
   , writeFile
   ) where
diff --git a/test/Test/Utf8/ReadWrite.hs b/test/Test/Utf8/ReadWrite.hs
--- a/test/Test/Utf8/ReadWrite.hs
+++ b/test/Test/Utf8/ReadWrite.hs
@@ -5,8 +5,13 @@
 
 {-# LANGUAGE LambdaCase          #-}
 {-# LANGUAGE OverloadedStrings   #-}
+{-# LANGUAGE PackageImports      #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 
+-- Due to our Data.Text.IO.Utf8 which is deprecated and
+-- will be removed later.
+{-# OPTIONS_GHC -fno-warn-deprecations #-}
+
 module Test.Utf8.ReadWrite where
 
 import Control.DeepSeq (force)
@@ -22,7 +27,7 @@
 import Test.HUnit (Assertion, assertFailure)
 
 import qualified Data.Text.IO as T
-import qualified Data.Text.IO.Utf8 as Utf8
+import qualified "with-utf8" Data.Text.IO.Utf8 as Utf8
 import qualified System.IO as IO
 import qualified System.IO.Utf8 as Utf8
 
diff --git a/with-utf8.cabal b/with-utf8.cabal
--- a/with-utf8.cabal
+++ b/with-utf8.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           with-utf8
-version:        1.0.2.4
+version:        1.1.0.0
 synopsis:       Get your IO right on the first try
 description:    This minimalistic library helps you navigate the world of text encodings
                 avoiding @invalid argument (invalid byte sequence)@
@@ -48,9 +48,9 @@
       lib
   ghc-options: -Wall -Wcompat -Wincomplete-record-updates -Wincomplete-uni-patterns -Wredundant-constraints
   build-depends:
-      base >=4.10 && <4.19
+      base >=4.10 && <4.20
     , safe-exceptions ==0.1.*
-    , text >=0.7 && <2.1
+    , text >=0.7 && <2.2
   default-language: Haskell2010
 
 executable utf8-troubleshoot
@@ -63,12 +63,12 @@
   c-sources:
       app/utf8-troubleshoot/cbits/locale.c
   build-depends:
-      base >=4.10 && <4.19
+      base >=4.10 && <4.20
     , directory >=1.2.5.0 && <1.4
     , filepath >=1.0 && <1.5
     , process >=1.0.1.1 && <1.7
     , safe-exceptions
-    , text >=0.7 && <2.1
+    , text >=0.7 && <2.2
     , th-env >=0.1.0.0 && <0.2
   default-language: Haskell2010
 
@@ -89,7 +89,7 @@
       tasty-discover:tasty-discover
   build-depends:
       HUnit
-    , base >=4.10 && <4.19
+    , base >=4.10 && <4.20
     , deepseq
     , hedgehog
     , safe-exceptions
@@ -97,7 +97,7 @@
     , tasty-hedgehog
     , tasty-hunit
     , temporary
-    , text >=0.7 && <2.1
+    , text >=0.7 && <2.2
     , unix
     , with-utf8
   default-language: Haskell2010