diff --git a/mbug.cabal b/mbug.cabal
--- a/mbug.cabal
+++ b/mbug.cabal
@@ -1,88 +1,91 @@
-cabal-version: >=1.10
-name: mbug
-version: 1.3
-license: GPL-3
-license-file: LICENSE
-copyright: 2018 Dmitry Bogatov
-maintainer: KAction@gnu.org
-author: Dmitry Bogatov
-homepage: https://gitlab.com/iu-guest/mbug
-synopsis: download bugs mailboxes
-description:
-    See readme at https://gitlab.com/iu-guest/mbug
-category: Debian
-build-type: Simple
+cabal-version: 1.12
+
+-- This file has been generated from package.yaml by hpack version 0.31.0.
+--
+-- see: https://github.com/sol/hpack
+--
+-- hash: 452fbbfd8288a970409879089e69435a7def1fad61125a323fbff7cb14a71a97
+
+name:           mbug
+version:        1.3.1
+synopsis:       download bugs mailboxes
+description:    See readme at https://gitlab.com/iu-guest/mbug
+category:       Debian
+homepage:       https://gitlab.com/iu-guest/mbug
+author:         Dmitry Bogatov
+maintainer:     KAction@gnu.org
+copyright:      2018 Dmitry Bogatov
+license:        GPL-3
+license-file:   LICENSE
+build-type:     Simple
 extra-source-files:
     README.md
 
 flag devel
-    description:
-        Enable -Werror GHC flag. Use only during development!
-    default: False
-    manual: True
+  description: Enable -Werror GHC flag. Use only during development!
+  manual: True
+  default: False
 
 library
-    exposed-modules:
-        MBug.Main
-        MBug.Data.Bug
-        MBug.Data.FolderMH
-        MBug.Options
-        MBug.Scrape
-        MBug.Cache
-        MBug.MH
-        Data.Maybe.Extended
-        Text.HTML.Scalpel.Core.Extended
-    hs-source-dirs: src
-    other-modules:
-        Data.Text.Compat
-        Options.Applicative.Compat
-        Paths_mbug
-    default-language: Haskell2010
-    build-depends:
-        base >=4.9 && <5,
-        bytestring ==0.10.*,
-        directory ==1.3.*,
-        extra >=1.5 && <1.7,
-        formatting >=6.0 && <6.4,
-        http-client ==0.5.*,
-        http-client-tls ==0.3.*,
-        mtl >=2.2.2 && <2.3,
-        optparse-applicative >=0.13 && <0.15,
-        process >=1.4 && <1.7,
-        scalpel-core ==0.5.*,
-        tagsoup ==0.14.*,
-        text ==1.2.*,
-        time >=1.6 && <1.9,
-        xdg-basedir ==0.2.*
-    
-    if flag(devel)
-        ghc-options: -Wall -Wextra -Werror -Wincomplete-patterns
-                     -Wunused-imports
+  exposed-modules:
+      MBug.Main
+      MBug.Data.Bug
+      MBug.Data.FolderMH
+      MBug.Options
+      MBug.Scrape
+      MBug.Cache
+      MBug.MH
+      Data.Maybe.Extended
+      Text.HTML.Scalpel.Core.Extended
+  other-modules:
+      Data.Text.Compat
+      Options.Applicative.Compat
+      Paths_mbug
+  hs-source-dirs:
+      src
+  build-depends:
+      base >=4.9 && <5
+    , bytestring ==0.10.*
+    , directory ==1.3.*
+    , extra >=1.5 && <1.7
+    , formatting >=6.0 && <6.4
+    , http-client ==0.5.*
+    , http-client-tls ==0.3.*
+    , mtl
+    , optparse-applicative >=0.13 && <0.15
+    , process >=1.4 && <1.7
+    , scalpel-core ==0.5.*
+    , tagsoup ==0.14.*
+    , text ==1.2.*
+    , time >=1.6 && <1.9
+    , xdg-basedir ==0.2.*
+  if flag(devel)
+    ghc-options: -Wall -Wextra -Werror -Wincomplete-patterns -Wunused-imports
+  default-language: Haskell2010
 
 executable mbug
-    main-is: mbug.hs
-    hs-source-dirs: bin
-    other-modules:
-        Paths_mbug
-    default-language: Haskell2010
-    build-depends:
-        base >=4.9 && <5,
-        bytestring ==0.10.*,
-        directory ==1.3.*,
-        extra >=1.5 && <1.7,
-        formatting >=6.0 && <6.4,
-        http-client ==0.5.*,
-        http-client-tls ==0.3.*,
-        mbug -any,
-        mtl >=2.2.2 && <2.3,
-        optparse-applicative >=0.13 && <0.15,
-        process >=1.4 && <1.7,
-        scalpel-core ==0.5.*,
-        tagsoup ==0.14.*,
-        text ==1.2.*,
-        time >=1.6 && <1.9,
-        xdg-basedir ==0.2.*
-    
-    if flag(devel)
-        ghc-options: -Wall -Wextra -Werror -Wincomplete-patterns
-                     -Wunused-imports
+  main-is: mbug.hs
+  other-modules:
+      Paths_mbug
+  hs-source-dirs:
+      bin
+  build-depends:
+      base >=4.9 && <5
+    , bytestring ==0.10.*
+    , directory ==1.3.*
+    , extra >=1.5 && <1.7
+    , formatting >=6.0 && <6.4
+    , http-client ==0.5.*
+    , http-client-tls ==0.3.*
+    , mbug
+    , mtl
+    , optparse-applicative >=0.13 && <0.15
+    , process >=1.4 && <1.7
+    , scalpel-core ==0.5.*
+    , tagsoup ==0.14.*
+    , text ==1.2.*
+    , time >=1.6 && <1.9
+    , xdg-basedir ==0.2.*
+  if flag(devel)
+    ghc-options: -Wall -Wextra -Werror -Wincomplete-patterns -Wunused-imports
+  default-language: Haskell2010