diff --git a/bytestring-tree-builder.cabal b/bytestring-tree-builder.cabal
--- a/bytestring-tree-builder.cabal
+++ b/bytestring-tree-builder.cabal
@@ -1,5 +1,5 @@
 name: bytestring-tree-builder
-version: 0.2.7.7
+version: 0.2.7.8
 category: ByteString
 synopsis: A very efficient ByteString builder implementation based on the binary tree
 description:
@@ -33,13 +33,9 @@
   exposed-modules:
     ByteString.TreeBuilder
   build-depends:
-    base >=4.6 && <5,
-    base-prelude <2,
-    bytestring >=0.10 && <0.11,
+    base >=4.11 && <5,
+    bytestring >=0.10 && <0.12,
     text >=1 && <2
-  if impl(ghc < 8.0)
-    build-depends:
-      semigroups >=0.18 && <0.20
 
 benchmark benchmark
   type: exitcode-stdio-1.0
diff --git a/library/ByteString/TreeBuilder/Prelude.hs b/library/ByteString/TreeBuilder/Prelude.hs
--- a/library/ByteString/TreeBuilder/Prelude.hs
+++ b/library/ByteString/TreeBuilder/Prelude.hs
@@ -4,14 +4,76 @@
 )
 where
 
-
--- base-prelude
--------------------------
-import BasePrelude as Exports hiding (assert, left, right, isLeft, isRight, error, First(..), Last(..), (<>))
-
--- semigroup
+-- base
 -------------------------
-import Data.Semigroup as Exports
+import Control.Applicative as Exports hiding (WrappedArrow(..))
+import Control.Arrow as Exports hiding (first, second)
+import Control.Category as Exports
+import Control.Concurrent as Exports
+import Control.Exception as Exports
+import Control.Monad as Exports hiding (fail, mapM_, sequence_, forM_, msum, mapM, sequence, forM)
+import Control.Monad.IO.Class as Exports
+import Control.Monad.Fail as Exports
+import Control.Monad.Fix as Exports hiding (fix)
+import Control.Monad.ST as Exports
+import Data.Bifunctor as Exports
+import Data.Bits as Exports
+import Data.Bool as Exports
+import Data.Char as Exports
+import Data.Coerce as Exports
+import Data.Complex as Exports
+import Data.Data as Exports
+import Data.Dynamic as Exports
+import Data.Either as Exports
+import Data.Fixed as Exports
+import Data.Foldable as Exports hiding (toList)
+import Data.Function as Exports hiding (id, (.))
+import Data.Functor as Exports
+import Data.Functor.Compose as Exports
+import Data.Functor.Contravariant as Exports
+import Data.Int as Exports
+import Data.IORef as Exports
+import Data.Ix as Exports
+import Data.List as Exports hiding (sortOn, isSubsequenceOf, uncons, concat, foldr, foldl1, maximum, minimum, product, sum, all, and, any, concatMap, elem, foldl, foldr1, notElem, or, find, maximumBy, minimumBy, mapAccumL, mapAccumR, foldl')
+import Data.List.NonEmpty as Exports (NonEmpty(..))
+import Data.Maybe as Exports
+import Data.Monoid as Exports hiding (Alt, (<>))
+import Data.Ord as Exports
+import Data.Proxy as Exports
+import Data.Ratio as Exports
+import Data.Semigroup as Exports hiding (First(..), Last(..))
+import Data.STRef as Exports
+import Data.String as Exports
+import Data.Traversable as Exports
+import Data.Tuple as Exports
+import Data.Unique as Exports
+import Data.Version as Exports
+import Data.Void as Exports
+import Data.Word as Exports
+import Debug.Trace as Exports
+import Foreign.ForeignPtr as Exports
+import Foreign.Ptr as Exports
+import Foreign.StablePtr as Exports
+import Foreign.Storable as Exports
+import GHC.Conc as Exports hiding (orElse, withMVar, threadWaitWriteSTM, threadWaitWrite, threadWaitReadSTM, threadWaitRead)
+import GHC.Exts as Exports (IsList(..), lazy, inline, sortWith, groupWith)
+import GHC.Generics as Exports (Generic)
+import GHC.IO.Exception as Exports
+import GHC.OverloadedLabels as Exports
+import Numeric as Exports
+import Prelude as Exports hiding (Read, fail, concat, foldr, mapM_, sequence_, foldl1, maximum, minimum, product, sum, all, and, any, concatMap, elem, foldl, foldr1, notElem, or, mapM, sequence, id, (.))
+import System.Environment as Exports
+import System.Exit as Exports
+import System.IO as Exports (Handle, hClose)
+import System.IO.Error as Exports
+import System.IO.Unsafe as Exports
+import System.Mem as Exports
+import System.Mem.StableName as Exports
+import System.Timeout as Exports
+import Text.ParserCombinators.ReadP as Exports (ReadP, readP_to_S, readS_to_P)
+import Text.ParserCombinators.ReadPrec as Exports (ReadPrec, readPrec_to_P, readP_to_Prec, readPrec_to_S, readS_to_Prec)
+import Text.Printf as Exports (printf, hPrintf)
+import Unsafe.Coerce as Exports
 
 -- bytestring
 -------------------------