diff --git a/Codec/Compression/Zlib/ByteStringCompat.hs b/Codec/Compression/Zlib/ByteStringCompat.hs
index 5cfe8b8..6d882f8 100644
--- a/Codec/Compression/Zlib/ByteStringCompat.hs
+++ b/Codec/Compression/Zlib/ByteStringCompat.hs
@@ -14,8 +14,7 @@ import Foreign.ForeignPtr (ForeignPtr)
 import GHC.ForeignPtr (plusForeignPtr)
 #else
 import GHC.ForeignPtr (ForeignPtr(ForeignPtr))
-import GHC.Types (Int (..))
-import GHC.Prim (plusAddr#)
+import GHC.Exts (Int (..), plusAddr#)
 #endif
 
 mkBS :: ForeignPtr Word8 -> Int -> Int -> ByteString
diff --git a/zlib.cabal b/zlib.cabal
index 1f30265..5865de0 100644
--- a/zlib.cabal
+++ b/zlib.cabal
@@ -95,8 +95,6 @@ library
 
   build-depends:   base >= 4.3 && < 4.20,
                    bytestring >= 0.9 && < 0.13
-  if impl(ghc < 8.0.3)
-    build-depends: ghc-prim
 
   build-tools:     hsc2hs >= 0.67 && < 0.69
     -- GHC 7 ships hsc2hs-0.67