diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -245,5 +245,5 @@
 With haskell-ci tooling installed, generate the `.travis.yml` setup with;
 ```
 > make-travis-yml --output=.travis.yml --config=cabal.haskell-ci hpack-dhall.cabal
-*INFO* Generating Travis-CI config for testing for GHC versions: 8.4.3 8.4.4 8.6.1
+*INFO* Generating Travis-CI config for testing for GHC versions: 8.4.3 8.4.4 8.6.1 8.6.2
 ```
diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,13 @@
 The [latest version](https://github.com/blockscope/hpack-dhall/blob/master/changelog.md) of this changelog.
 
+## 0.5.1 - Sorted Fields Pretty Printing
+* Regenerate golden files for the bump in hpack's version:
+
+```
+---- This file has been generated from package.yaml by hpack version 0.31.0.
+++-- This file has been generated from package.yaml by hpack version 0.31.1.
+```
+
 ## 0.5.0 - Sorted Fields Pretty Printing
 * Sort fields when pretty printing JSON and YAML.
 * Add real world golden tests, using stack and hpack packages.
diff --git a/hpack-dhall.cabal b/hpack-dhall.cabal
--- a/hpack-dhall.cabal
+++ b/hpack-dhall.cabal
@@ -1,13 +1,13 @@
 cabal-version: 1.12
 
--- This file has been generated from package.dhall by hpack version 0.31.0.
+-- This file has been generated from package.dhall by hpack version 0.31.1.
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 056b2248186a5860a9315055d3cbf8c57994ff2621e5f5941f214397c7ca26d9
+-- hash: b3f8d5f1300d63e3eb10dd2b12fac8f38da8deb93e323b4fd95a0ffe9bbad9e9
 
 name:           hpack-dhall
-version:        0.5.0
+version:        0.5.1
 synopsis:       hpack's dhalling
 description:    Work with hpack's top-level
                 <https://github.com/sol/hpack#top-level-fields fields> in a Dhall
@@ -24,7 +24,7 @@
 copyright:      © 2018 Phil de Joux, © 2018 Block Scope Limited
 license:        BSD3
 license-file:   LICENSE
-tested-with:    GHC == 8.4.3, GHC == 8.4.4, GHC == 8.6.1
+tested-with:    GHC == 8.4.3, GHC == 8.4.4, GHC == 8.6.1, GHC == 8.6.2
 build-type:     Simple
 extra-source-files:
     package.dhall
diff --git a/library/Hpack/Dhall.hs b/library/Hpack/Dhall.hs
--- a/library/Hpack/Dhall.hs
+++ b/library/Hpack/Dhall.hs
@@ -8,10 +8,14 @@
 License: BSD3
 Maintainer: Phil de Joux <phil.dejoux@blockscope.com>
 Stability: experimental
-Instead of working with <https://github.com/sol/hpack#readme hpack> in
-<https://en.wikipedia.org/wiki/YAML YAML>, use
-<https://github.com/dhall-lang/dhall-lang#readme Dhall>.  All functions resolve
-imports relative to the location of the given @.dhall@ file.
+The functions in this module make it possible to configure an
+<https://github.com/sol/hpack#readme hpack>
+package description with
+<https://github.com/dhall-lang/dhall-lang#readme Dhall>
+instead of
+<https://en.wikipedia.org/wiki/YAML YAML>.
+When doing so, note that all functions resolve imports relative to the location
+of the given @.dhall@ input file.
 -}
 module Hpack.Dhall
     ( fileToJson
diff --git a/package.dhall b/package.dhall
--- a/package.dhall
+++ b/package.dhall
@@ -1,133 +1,134 @@
-    let deps =
-          [ "base == 4.*"
-          , "megaparsec >= 7.0.1"
-          , "dhall >= 1.18.0"
-          , "dhall-json >= 1.2.4"
-          , "hpack >= 0.31.0"
-          , "transformers"
-          , "text"
-          , "microlens"
-          , "filepath"
-          , "bytestring"
-          , "prettyprinter"
-          , "aeson"
-          , "aeson-pretty"
-          , "yaml"
-          ]
-
-in  let exe-deps = [ "hpack-dhall", "optparse-applicative" ]
+let deps =
+      [ "base == 4.*"
+      , "megaparsec >= 7.0.1"
+      , "dhall >= 1.18.0"
+      , "dhall-json >= 1.2.4"
+      , "hpack >= 0.31.0"
+      , "transformers"
+      , "text"
+      , "microlens"
+      , "filepath"
+      , "bytestring"
+      , "prettyprinter"
+      , "aeson"
+      , "aeson-pretty"
+      , "yaml"
+      ]
 
-in  { name =
-        "hpack-dhall"
-    , version =
-        "0.5.0"
-    , maintainer =
-        "Phil de Joux <phil.dejoux@blockscope.com>"
-    , copyright =
-        "\u00A9 2018 Phil de Joux, \u00A9 2018 Block Scope Limited"
-    , license =
-        "BSD3"
-    , license-file =
-        "LICENSE"
-    , category =
-        "Development"
-    , synopsis =
-        "hpack's dhalling"
-    , description =
-        ''
-        Work with hpack's top-level
-        <https://github.com/sol/hpack#top-level-fields fields> in a Dhall
-        record with the following executables;
-        
-        * with @dhall-hpack-cabal@ write the @.cabal@ for a @.dhall@ package description.
-        * with @dhall-hpack-dhall@ show the package description expression, with imports resolved.
-        * with @dhall-hpack-json@ show the package description as JSON.
-        * with @dhall-hpack-yaml@ show the package description as YAML.
-        ''
-    , github =
-        "blockscope/hpack-dhall"
-    , tested-with =
-        "GHC == 8.4.3, GHC == 8.4.4, GHC == 8.6.1"
-    , extra-source-files =
-        [ "package.dhall"
-        , "changelog.md"
-        , "README.md"
-        , "test/golden/**/*.dhall"
-        , "test/golden/**/*.dhl"
-        , "test/golden/**/*.cabal"
-        , "test/golden/**/*.json"
-        , "test/golden/**/*.yaml"
-        , "test/golden/**/*.golden"
-        ]
-    , ghc-options =
-        "-Wall"
-    , dependencies =
-        deps
-    , source-dirs =
-        "library"
-    , library =
-        { exposed-modules = [ "Hpack.Dhall", "Hpack.Fields" ] }
-    , executables =
-        { dhall-hpack-cabal =
-            { main =
-                "CabalMain.hs"
-            , source-dirs =
-                [ "exe/options", "exe/dhall-hpack-cabal" ]
-            , dependencies =
-                exe-deps
-            }
-        , dhall-hpack-json =
-            { main =
-                "JsonMain.hs"
-            , source-dirs =
-                [ "exe/options", "exe/dhall-hpack-json" ]
-            , dependencies =
-                exe-deps
-            }
-        , dhall-hpack-yaml =
-            { main =
-                "YamlMain.hs"
-            , source-dirs =
-                [ "exe/options", "exe/dhall-hpack-yaml" ]
-            , dependencies =
-                exe-deps
-            }
-        , dhall-hpack-dhall =
-            { main =
-                "DhallMain.hs"
-            , source-dirs =
-                [ "exe/options", "exe/dhall-hpack-dhall" ]
-            , dependencies =
-                exe-deps
+in  let exe-deps =
+          [ "hpack-dhall", "optparse-applicative" ]
+    
+    in  { name =
+            "hpack-dhall"
+        , version =
+            "0.5.1"
+        , maintainer =
+            "Phil de Joux <phil.dejoux@blockscope.com>"
+        , copyright =
+            "© 2018 Phil de Joux, © 2018 Block Scope Limited"
+        , license =
+            "BSD3"
+        , license-file =
+            "LICENSE"
+        , category =
+            "Development"
+        , synopsis =
+            "hpack's dhalling"
+        , description =
+            ''
+            Work with hpack's top-level
+            <https://github.com/sol/hpack#top-level-fields fields> in a Dhall
+            record with the following executables;
+            
+            * with @dhall-hpack-cabal@ write the @.cabal@ for a @.dhall@ package description.
+            * with @dhall-hpack-dhall@ show the package description expression, with imports resolved.
+            * with @dhall-hpack-json@ show the package description as JSON.
+            * with @dhall-hpack-yaml@ show the package description as YAML.
+            ''
+        , github =
+            "blockscope/hpack-dhall"
+        , tested-with =
+            "GHC == 8.4.3, GHC == 8.4.4, GHC == 8.6.1, GHC == 8.6.2"
+        , extra-source-files =
+            [ "package.dhall"
+            , "changelog.md"
+            , "README.md"
+            , "test/golden/**/*.dhall"
+            , "test/golden/**/*.dhl"
+            , "test/golden/**/*.cabal"
+            , "test/golden/**/*.json"
+            , "test/golden/**/*.yaml"
+            , "test/golden/**/*.golden"
+            ]
+        , ghc-options =
+            "-Wall"
+        , dependencies =
+            deps
+        , source-dirs =
+            "library"
+        , library =
+            { exposed-modules = [ "Hpack.Dhall", "Hpack.Fields" ] }
+        , executables =
+            { dhall-hpack-cabal =
+                { main =
+                    "CabalMain.hs"
+                , source-dirs =
+                    [ "exe/options", "exe/dhall-hpack-cabal" ]
+                , dependencies =
+                    exe-deps
+                }
+            , dhall-hpack-json =
+                { main =
+                    "JsonMain.hs"
+                , source-dirs =
+                    [ "exe/options", "exe/dhall-hpack-json" ]
+                , dependencies =
+                    exe-deps
+                }
+            , dhall-hpack-yaml =
+                { main =
+                    "YamlMain.hs"
+                , source-dirs =
+                    [ "exe/options", "exe/dhall-hpack-yaml" ]
+                , dependencies =
+                    exe-deps
+                }
+            , dhall-hpack-dhall =
+                { main =
+                    "DhallMain.hs"
+                , source-dirs =
+                    [ "exe/options", "exe/dhall-hpack-dhall" ]
+                , dependencies =
+                    exe-deps
+                }
             }
-        }
-    , tests =
-          ./default-tests.dhall
-        ⫽ { golden =
-              { main =
-                  "Golden.hs"
-              , source-dirs =
-                  [ "test/golden/src" ]
-              , dependencies =
-                  [ "base"
-                  , "Cabal"
-                  , "Diff"
-                  , "dhall"
-                  , "filepath"
-                  , "microlens"
-                  , "prettyprinter"
-                  , "tasty"
-                  , "tasty-golden"
-                  , "text"
-                  , "megaparsec >= 7.0.1"
-                  , "dhall >= 1.18.0"
-                  , "dhall-json >= 1.2.4"
-                  , "hpack >= 0.31.0"
-                  , "transformers"
-                  , "aeson"
-                  , "utf8-string"
-                  , "directory"
-                  ]
+        , tests =
+              ./default-tests.dhall
+            ⫽ { golden =
+                  { main =
+                      "Golden.hs"
+                  , source-dirs =
+                      [ "test/golden/src" ]
+                  , dependencies =
+                      [ "base"
+                      , "Cabal"
+                      , "Diff"
+                      , "dhall"
+                      , "filepath"
+                      , "microlens"
+                      , "prettyprinter"
+                      , "tasty"
+                      , "tasty-golden"
+                      , "text"
+                      , "megaparsec >= 7.0.1"
+                      , "dhall >= 1.18.0"
+                      , "dhall-json >= 1.2.4"
+                      , "hpack >= 0.31.0"
+                      , "transformers"
+                      , "aeson"
+                      , "utf8-string"
+                      , "directory"
+                      ]
+                  }
               }
-          }
-    }
+        }
diff --git a/test/golden/test-files/key/empty-inferred/package.yaml.cabal b/test/golden/test-files/key/empty-inferred/package.yaml.cabal
--- a/test/golden/test-files/key/empty-inferred/package.yaml.cabal
+++ b/test/golden/test-files/key/empty-inferred/package.yaml.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.31.0.
+-- This file has been generated from package.yaml by hpack version 0.31.1.
 --
 -- see: https://github.com/sol/hpack
 --
diff --git a/test/golden/test-files/key/empty-package.yaml.cabal b/test/golden/test-files/key/empty-package.yaml.cabal
--- a/test/golden/test-files/key/empty-package.yaml.cabal
+++ b/test/golden/test-files/key/empty-package.yaml.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.12
 
--- This file has been generated from empty-package.yaml by hpack version 0.31.0.
+-- This file has been generated from empty-package.yaml by hpack version 0.31.1.
 --
 -- see: https://github.com/sol/hpack
 --
diff --git a/test/golden/test-files/key/import-local/package.yaml.cabal b/test/golden/test-files/key/import-local/package.yaml.cabal
--- a/test/golden/test-files/key/import-local/package.yaml.cabal
+++ b/test/golden/test-files/key/import-local/package.yaml.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.31.0.
+-- This file has been generated from package.yaml by hpack version 0.31.1.
 --
 -- see: https://github.com/sol/hpack
 --
diff --git a/test/golden/test-files/key/import-relative/package.yaml.cabal b/test/golden/test-files/key/import-relative/package.yaml.cabal
--- a/test/golden/test-files/key/import-relative/package.yaml.cabal
+++ b/test/golden/test-files/key/import-relative/package.yaml.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.31.0.
+-- This file has been generated from package.yaml by hpack version 0.31.1.
 --
 -- see: https://github.com/sol/hpack
 --
diff --git a/test/golden/test-files/key/when-dependencies.cabal b/test/golden/test-files/key/when-dependencies.cabal
--- a/test/golden/test-files/key/when-dependencies.cabal
+++ b/test/golden/test-files/key/when-dependencies.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.12
 
--- This file has been generated from when-dependencies.dhall by hpack version 0.31.0.
+-- This file has been generated from when-dependencies.dhall by hpack version 0.31.1.
 --
 -- see: https://github.com/sol/hpack
 --
diff --git a/test/golden/test-files/key/when-dependencies.cabal.golden b/test/golden/test-files/key/when-dependencies.cabal.golden
--- a/test/golden/test-files/key/when-dependencies.cabal.golden
+++ b/test/golden/test-files/key/when-dependencies.cabal.golden
@@ -1,6 +1,6 @@
 cabal-version: 1.12
 
--- This file has been generated from when-dependencies.dhall by hpack version 0.31.0.
+-- This file has been generated from when-dependencies.dhall by hpack version 0.31.1.
 --
 -- see: https://github.com/sol/hpack
 --
diff --git a/test/golden/test-files/key/when-dependencies.dhall.golden b/test/golden/test-files/key/when-dependencies.dhall.golden
--- a/test/golden/test-files/key/when-dependencies.dhall.golden
+++ b/test/golden/test-files/key/when-dependencies.dhall.golden
@@ -1,4 +1,4 @@
-    let deps = [ "base == 4.*" ]
+let deps = [ "base == 4.*" ]
 
 in  { name =
         "when-dependencies"
diff --git a/test/golden/test-files/key/when-dependencies.yaml.cabal b/test/golden/test-files/key/when-dependencies.yaml.cabal
--- a/test/golden/test-files/key/when-dependencies.yaml.cabal
+++ b/test/golden/test-files/key/when-dependencies.yaml.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.12
 
--- This file has been generated from when-dependencies.yaml by hpack version 0.31.0.
+-- This file has been generated from when-dependencies.yaml by hpack version 0.31.1.
 --
 -- see: https://github.com/sol/hpack
 --
diff --git a/test/golden/test-files/real-world/hpack/hpack.yaml.cabal b/test/golden/test-files/real-world/hpack/hpack.yaml.cabal
--- a/test/golden/test-files/real-world/hpack/hpack.yaml.cabal
+++ b/test/golden/test-files/real-world/hpack/hpack.yaml.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.12
 
--- This file has been generated from hpack.yaml by hpack version 0.31.0.
+-- This file has been generated from hpack.yaml by hpack version 0.31.1.
 --
 -- see: https://github.com/sol/hpack
 --
diff --git a/test/golden/test-files/real-world/stack/stack.cabal b/test/golden/test-files/real-world/stack/stack.cabal
--- a/test/golden/test-files/real-world/stack/stack.cabal
+++ b/test/golden/test-files/real-world/stack/stack.cabal
@@ -1,6 +1,6 @@
 cabal-version: 2.0
 
--- This file has been generated from stack.dhall by hpack version 0.31.0.
+-- This file has been generated from stack.dhall by hpack version 0.31.1.
 --
 -- see: https://github.com/sol/hpack
 --
diff --git a/test/golden/test-files/real-world/stack/stack.cabal.golden b/test/golden/test-files/real-world/stack/stack.cabal.golden
--- a/test/golden/test-files/real-world/stack/stack.cabal.golden
+++ b/test/golden/test-files/real-world/stack/stack.cabal.golden
@@ -1,6 +1,6 @@
 cabal-version: 2.0
 
--- This file has been generated from stack.dhall by hpack version 0.31.0.
+-- This file has been generated from stack.dhall by hpack version 0.31.1.
 --
 -- see: https://github.com/sol/hpack
 --
diff --git a/test/golden/test-files/real-world/stack/stack.dhall.golden b/test/golden/test-files/real-world/stack/stack.dhall.golden
--- a/test/golden/test-files/real-world/stack/stack.dhall.golden
+++ b/test/golden/test-files/real-world/stack/stack.dhall.golden
@@ -41,7 +41,7 @@
     , "-fwarn-tabs"
     , "-fwarn-incomplete-uni-patterns"
     , "-fwarn-incomplete-record-updates"
-    , "-optP-Wno-nonportable-include-path # workaround [Filename case on macOS \u00B7 Issue #4739 \u00B7 haskell/cabal](https://github.com/haskell/cabal/issues/4739)"
+    , "-optP-Wno-nonportable-include-path # workaround [Filename case on macOS · Issue #4739 · haskell/cabal](https://github.com/haskell/cabal/issues/4739)"
     ]
 , dependencies =
     [ "Cabal >= 2.4"
diff --git a/test/golden/test-files/real-world/stack/stack.yaml.cabal b/test/golden/test-files/real-world/stack/stack.yaml.cabal
--- a/test/golden/test-files/real-world/stack/stack.yaml.cabal
+++ b/test/golden/test-files/real-world/stack/stack.yaml.cabal
@@ -1,6 +1,6 @@
 cabal-version: 2.0
 
--- This file has been generated from stack.yaml by hpack version 0.31.0.
+-- This file has been generated from stack.yaml by hpack version 0.31.1.
 --
 -- see: https://github.com/sol/hpack
 --