diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,12 @@
 
+## 0.0.1.4
+
+_Andreas Abel, 2025-12-26_
+
+- Drop support for GHC 8.0 and 8.2.
+- Drop thus obsolete dependency `ghc-byteorder`.
+- Tested with GHC 8.4 - 9.14.
+
 ## 0.0.1.3
 
 _Andreas Abel, 2024-06-25_
diff --git a/src/Endianness.hs b/src/Endianness.hs
--- a/src/Endianness.hs
+++ b/src/Endianness.hs
@@ -23,33 +23,10 @@
     ) where
 
 import           Data.Word        (Word16, Word32, Word64, Word8)
+import           Data.Word        (byteSwap16, byteSwap32, byteSwap64)
 import           Foreign.Ptr
 import           Foreign.Storable
 import           GHC.ByteOrder    (ByteOrder (..), targetByteOrder)
-
-#if MIN_VERSION_base(4,7,0)
-import           Data.Word        (byteSwap16, byteSwap32, byteSwap64)
-#else
-import           Data.Bits
-
--- supply missing byteSwap operations
-
-byteSwap16 :: Word16 -> Word16
-byteSwap16 = (`rotateL` 8)
-
-byteSwap32 :: Word32 -> Word32
-byteSwap32 x
-  = (x                  `shiftR` 24)  .|.
-    ((x .&. 0x00ff0000) `shiftR`  8)  .|.
-    ((x .&. 0x0000ff00) `shiftL`  8)  .|.
-    (x                  `shiftL` 24)
-
-byteSwap64 :: Word64 -> Word64
-byteSwap64 x = xh .|. (xl `shiftL` 32)
-  where
-    xl = fromIntegral (byteSwap32 (fromIntegral x))
-    xh = fromIntegral (byteSwap32 (fromIntegral (x `shiftR` 32)))
-#endif
 
 pokeWord16be :: Ptr Word16 -> Word16 -> IO ()
 pokeWord16be = case targetByteOrder of
diff --git a/xor.cabal b/xor.cabal
--- a/xor.cabal
+++ b/xor.cabal
@@ -1,6 +1,6 @@
 cabal-version:       2.2
 name:                xor
-version:             0.0.1.3
+version:             0.0.1.4
 
 category:            Data, Codec
 author:              Herbert Valerio Riedel
@@ -30,9 +30,11 @@
   The performance is comparable to portable ISO C99 implementations but this library is implemented as pure Haskell and is thereby compatible with compile targets such as <https://github.com/ghcjs/ghcjs GHCJS>.
 
 tested-with:
-  GHC == 9.10.1
-  GHC == 9.8.2
-  GHC == 9.6.5
+  GHC == 9.14.1
+  GHC == 9.12.2
+  GHC == 9.10.3
+  GHC == 9.8.4
+  GHC == 9.6.7
   GHC == 9.4.8
   GHC == 9.2.8
   GHC == 9.0.2
@@ -40,8 +42,6 @@
   GHC == 8.8.4
   GHC == 8.6.5
   GHC == 8.4.4
-  GHC == 8.2.2
-  GHC == 8.0.2
 
 extra-doc-files:
   CHANGELOG.md
@@ -58,9 +58,10 @@
                        MagicHash
 
   build-depends:
-    , base            >= 4.9      && < 5
-    , bytestring      >= 0.10.4   && < 0.13
-    , ghc-byteorder  ^>= 4.11.0.0
+    , base            >= 4.11      && < 5
+        -- GHC.ByteOrder ships with base-4.11 and up
+    , bytestring      >= 0.10.8.2  && < 0.13
+        -- bytestring-0.10.8.2 ships with GHC 8.4
 
   ghc-options:
     -Wall
@@ -105,4 +106,4 @@
     , tasty             >= 1.2.3 && < 1.6
     , tasty-hunit      ^>= 0.10
     , tasty-quickcheck  >= 0.10  && < 1
-    , QuickCheck        >= 2.14  && < 2.16
+    , QuickCheck        >= 2.14  && < 3