diff --git a/hnix.cabal b/hnix.cabal
index 88a92b5..a468bb8 100644
--- a/hnix.cabal
+++ b/hnix.cabal
@@ -910,10 +910,6 @@ library
         Nix.Options.Parser
     build-depends:
         base16-bytestring >= 0.1.1 && < 0.2
-      , cryptohash-md5 >= 0.11.100 && < 0.12
-      , cryptohash-sha1 >= 0.11.100 && < 0.12
-      , cryptohash-sha256 >= 0.11.101 && < 0.12
-      , cryptohash-sha512 >= 0.11.100 && < 0.12
       , haskeline >= 0.7.4.2 && < 0.8
       , pretty-show >= 1.9.5 && < 1.11
       , serialise >= 0.2.1 && < 0.3
@@ -937,16 +933,11 @@ executable hnix
     , bytestring
     , comonad
     , containers
-    , cryptohash-md5
-    , cryptohash-sha1
-    , cryptohash-sha256
-    , cryptohash-sha512
     , data-fix
     , deepseq
     , exceptions
     , filepath
     , free
-    , hashing
     , haskeline
     , hnix
     , mtl
@@ -989,17 +980,12 @@ test-suite hnix-tests
     , base16-bytestring
     , bytestring
     , containers
-    , cryptohash-md5
-    , cryptohash-sha1
-    , cryptohash-sha256
-    , cryptohash-sha512
     , data-fix
     , deepseq >=1.4.3 && <1.5
     , directory
     , exceptions
     , filepath
     , generic-random
-    , hashing
     , hedgehog
     , hnix
     , interpolate
@@ -1043,15 +1029,10 @@ benchmark hnix-benchmarks
     , bytestring
     , containers
     , criterion
-    , cryptohash-md5
-    , cryptohash-sha1
-    , cryptohash-sha256
-    , cryptohash-sha512
     , data-fix
     , deepseq >=1.4.3 && <1.5
     , exceptions
     , filepath
-    , hashing
     , hnix
     , mtl
     , optparse-applicative
diff --git a/src/Nix/Builtins.hs b/src/Nix/Builtins.hs
index 6017592..3c7b78a 100644
--- a/src/Nix/Builtins.hs
+++ b/src/Nix/Builtins.hs
@@ -30,23 +30,11 @@ import           Control.Monad
 import           Control.Monad.Catch
 import           Control.Monad.ListM            ( sortByM )
 import           Control.Monad.Reader           ( asks )
-
--- Using package imports here because there is a bug in cabal2nix that demands
--- us to put the hashing package in the unconditional dependency list.
--- See https://github.com/NixOS/cabal2nix/issues/348 for more info
-#if MIN_VERSION_hashing(0, 1, 0)
-import "hashing" Crypto.Hash
-import qualified "hashing" Crypto.Hash.MD5     as MD5
-import qualified "hashing" Crypto.Hash.SHA1    as SHA1
-import qualified "hashing" Crypto.Hash.SHA256  as SHA256
-import qualified "hashing" Crypto.Hash.SHA512  as SHA512
-#else
-import qualified "cryptohash-md5" Crypto.Hash.MD5 as MD5
-import qualified "cryptohash-sha1" Crypto.Hash.SHA1 as SHA1
-import qualified "cryptohash-sha256" Crypto.Hash.SHA256 as SHA256
-import qualified "cryptohash-sha512" Crypto.Hash.SHA512 as SHA512
-#endif
-
+import           Crypto.Hash
+import qualified Crypto.Hash.MD5               as MD5
+import qualified Crypto.Hash.SHA1              as SHA1
+import qualified Crypto.Hash.SHA256            as SHA256
+import qualified Crypto.Hash.SHA512            as SHA512
 import qualified Data.Aeson                    as A
 import           Data.Align                     ( alignWith )
 import           Data.Array
@@ -1208,32 +1196,16 @@ hashString nsAlgo ns = Prim $ do
   case algo of
     "md5" ->
       f $ \s ->
-#if MIN_VERSION_hashing(0, 1, 0)
                 Text.pack $ show (hash (encodeUtf8 s) :: MD5.MD5)
-#else
-          decodeUtf8 $ Base16.encode $ MD5.hash $ encodeUtf8 s
-#endif
     "sha1" ->
       f $ \s ->
-#if MIN_VERSION_hashing(0, 1, 0)
                 Text.pack $ show (hash (encodeUtf8 s) :: SHA1.SHA1)
-#else
-          decodeUtf8 $ Base16.encode $ SHA1.hash $ encodeUtf8 s
-#endif
     "sha256" ->
       f $ \s ->
-#if MIN_VERSION_hashing(0, 1, 0)
                 Text.pack $ show (hash (encodeUtf8 s) :: SHA256.SHA256)
-#else
-          decodeUtf8 $ Base16.encode $ SHA256.hash $ encodeUtf8 s
-#endif
     "sha512" ->
       f $ \s ->
-#if MIN_VERSION_hashing(0, 1, 0)
                 Text.pack $ show (hash (encodeUtf8 s) :: SHA512.SHA512)
-#else
-          decodeUtf8 $ Base16.encode $ SHA512.hash $ encodeUtf8 s
-#endif
     _ ->
       throwError
         $  ErrorCall