diff --git a/.gitignore b/.gitignore
index b9df080..773d8d4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,2 @@
-.cabal-sandbox/
+*.cabal
 .stack-work/
-cabal.sandbox.config
-dist/
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2cc97df..85a1f37 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+# Undefined
+
+## Enhancements
+
+- Use hpack
+
 # 0.3.0 (2019-02-05)
 
 ## Enhancements
diff --git a/Setup.hs b/Setup.hs
deleted file mode 100644
index 93cfa1f..0000000
--- a/Setup.hs
+++ /dev/null
@@ -1,11 +0,0 @@
-module Main
-  ( main
-  )
-  where
-
-import Distribution.Simple (defaultMain)
-
-
-main :: IO ()
-main =
-  defaultMain
diff --git a/licensor.cabal b/licensor.cabal
deleted file mode 100644
index 291af92..0000000
--- a/licensor.cabal
+++ /dev/null
@@ -1,68 +0,0 @@
-name: licensor
-version: 0.3.0
-
-build-type: Simple
-cabal-version: >= 1.10
-
-license: MIT
-license-file: LICENSE.md
-
-copyright: 2016 Juan Pedro Villa Isaza
-author: Juan Pedro Villa Isaza <jpvillaisaza@gmail.com>
-maintainer: Juan Pedro Villa Isaza <jpvillaisaza@gmail.com>
-
-stability: Experimental
-
-homepage: https://github.com/jpvillaisaza/licensor
-bug-reports: https://github.com/jpvillaisaza/licensor/issues
-
-synopsis: A license compatibility helper
-description: A license compatibility helper.
-
-category: Distribution
-
-tested-with: GHC == 7.10.3, GHC == 8.0.1, GHC == 8.0.2, GHC == 8.2.1, GHC == 8.2.2
-
-extra-source-files: CHANGELOG.md, README.md
-
-
-library
-  hs-source-dirs:
-      src
-  exposed-modules:
-      Licensor
-  other-modules:
-      Paths_licensor
-  build-depends:
-      base >= 4.8 && < 4.11
-    , bytestring
-    , Cabal >= 1.22 && < 2.1
-    , containers
-    , directory
-    , http-conduit >= 2.1 && < 2.4
-    , process
-  default-language:
-      Haskell2010
-  ghc-options:
-      -Wall
-
-
-executable licensor
-  main-is:
-      Main.hs
-  build-depends:
-      base
-    , Cabal
-    , cmdargs >= 0.10 && < 0.11
-    , containers
-    , directory
-    , licensor
-  default-language:
-      Haskell2010
-  ghc-options:
-      -Wall -threaded -rtsopts -with-rtsopts=-N
-
-
-source-repository head
-  type: git
-  location: https://github.com/jpvillaisaza/licensor
diff --git a/package.yaml b/package.yaml
new file mode 100644
index 0000000..3071e1f
--- /dev/null
+++ b/package.yaml
@@ -0,0 +1,47 @@
+name: licensor
+version: 0.3.0
+
+synopsis: A license compatibility helper
+description: A license compatibility helper.
+
+category: Distribution
+
+stability: Experimental
+github: jpvillaisaza/licensor
+homepage: https://jpvillaisaza.co/licensor
+
+author: Juan Pedro Villa Isaza <jpvillaisaza@gmail.com>
+maintainer: Juan Pedro Villa Isaza <jpvillaisaza@gmail.com>
+copyright: 2016 Juan Pedro Villa Isaza
+
+license-file: LICENSE.md
+
+extra-source-files:
+  - CHANGELOG.md
+  - README.md
+
+dependencies:
+  - Cabal >= 1.22 && < 2.1
+  - base >= 4.8 && < 4.11
+  - containers
+  - directory
+
+ghc-options:
+  - -Wall
+
+library:
+  source-dirs:
+    src
+  dependencies:
+    - bytestring
+    - http-conduit >= 2.1 && < 2.4
+    - process
+
+executable:
+  main:
+    Main.hs
+  dependencies:
+    - cmdargs >= 0.10 && < 0.11
+    - licensor
+  ghc-options:
+    - -threaded -rtsopts -with-rtsopts=-N