diff --git a/Main.hs b/Main.hs
--- a/Main.hs
+++ b/Main.hs
@@ -15,5 +15,5 @@
 	forM_ files $ \file -> do
 		bsMapped <- mmapFileByteString file Nothing
 		bs <- if B.length bsMapped > 0 then pure bsMapped else B.readFile file
-		let digest :: Digest 32 = hash [bs]
+		let digest :: Digest 32 = hash Nothing [bs]
 		putStrLn (show digest ++ "\t" ++ file)
diff --git a/hb3sum.cabal b/hb3sum.cabal
--- a/hb3sum.cabal
+++ b/hb3sum.cabal
@@ -1,6 +1,6 @@
 cabal-version:       3.0
 name:                hb3sum
-version:             0
+version:             0.0.0.1
 synopsis:            A command line tool to compute BLAKE3 hashes.
 description:         A command line tool to compute BLAKE3 hashes. Aims at being a b3sum drop-in replacement.
 license:             AGPL-3.0-only
@@ -18,13 +18,13 @@
 Source-repository this
   type:              git
   location:          https://github.com/l29ah/hb3sum
-  tag:               0
+  tag:               0.0.0.1
 
 executable hb3sum
   main-is:             Main.hs
   ghc-options:         -W -Wcompat -fno-warn-tabs
-  build-depends:       base >= 4.15 && < 5,
-                       blake3 ^>= 0.2,
+  build-depends:       base >= 4.9 && < 5,
+                       blake3 ^>= 0.3,
                        mmap ^>= 0.5.9,
-                       bytestring ^>= 0.10,
+                       bytestring >= 0.10 && < 0.12,
   default-language:    Haskell2010