diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.1.0.1 (5 Dec 2016)
+
+* Specify lower bounds in cabal file
+
 ## 2.1.0.0 (5 Dec 2016)
 
 * Use `http-conduit` instead of `wreq` as HTTP client
diff --git a/line.cabal b/line.cabal
--- a/line.cabal
+++ b/line.cabal
@@ -1,91 +1,88 @@
-name: line
-version: 2.1.0.0
-cabal-version: >=1.10
-build-type: Simple
-license: BSD3
-license-file: LICENSE
-copyright: (c) 2016 Jun <me@noraesae.net>
-maintainer: Jun <me@noraesae.net>
-homepage: https://github.com/noraesae/line
-synopsis: Haskell SDK for the LINE API
-description:
-    This package exports bindings to LINE APIs.
-    .
-    It provides the following features:
-    .
-    * Internal auth signature validator
-    .
-    * Webhook handled with handler function, WAI application, or Scotty action
-    .
-    * Functions and types for <https://devdocs.line.me/en/#messaging-api LINE Messaging API>
-    .
-    For example usages, please see the
-    <https://github.com/noraesae/line/tree/master/examples examples> directory.
-category: Network
-author: Jun
+name:                line
+version:             2.1.0.1
+synopsis:            Haskell SDK for the LINE API
+homepage:            https://github.com/noraesae/line
+license:             BSD3
+license-file:        LICENSE
+author:              Jun
+maintainer:          Jun <me@noraesae.net>
+copyright:           (c) 2016 Jun <me@noraesae.net>
+category:            Network
+build-type:          Simple
+cabal-version:       >=1.10
 extra-source-files:
-    README.md
-    CHANGELOG.md
-    examples/*.hs
-
-source-repository head
-    type: git
-    location: https://github.com/noraesae/line
+  README.md
+  CHANGELOG.md
+  examples/*.hs
+description:
+  This package exports bindings to LINE APIs.
+  .
+  It provides the following features:
+  .
+  * Internal auth signature validator
+  .
+  * Webhook handled with handler function, WAI application, or Scotty action
+  .
+  * Functions and types for <https://devdocs.line.me/en/#messaging-api LINE Messaging API>
+  .
+  For example usages, please see the
+  <https://github.com/noraesae/line/tree/master/examples examples> directory.
 
 library
-    exposed-modules:
-        Line.Messaging.API
-        Line.Messaging.API.Types
-        Line.Messaging.Common.Types
-        Line.Messaging.Types
-        Line.Messaging.Webhook
-        Line.Messaging.Webhook.Types
-        Line.Messaging.Webhook.Validation
-    build-depends:
-        base >=4.8 && <5,
-        wai >=3.2.1.1 && <3.3,
-        http-types >=0.9.1 && <0.10,
-        aeson >=0.11.2.1 && <0.12,
-        bytestring >=0.10.8.1 && <0.11,
-        text >=1.2.2.1 && <1.3,
-        transformers >=0.5.2.0 && <0.6,
-        cryptohash-sha256 >=0.11.100.1 && <0.12,
-        base64-bytestring >=1.0.0.1 && <1.1,
-        time >=1.6.0.1 && <1.7,
-        http-conduit >=2.1.11 && <2.2,
-        scotty >=0.11.0 && <0.12
-    default-language: Haskell2010
-    default-extensions: OverloadedStrings
-    hs-source-dirs: src
-    ghc-options: -Wall
+  hs-source-dirs:      src
+  ghc-options:         -Wall
+  exposed-modules:     Line.Messaging.API
+                       Line.Messaging.API.Types
+                       Line.Messaging.Common.Types
+                       Line.Messaging.Types
+                       Line.Messaging.Webhook
+                       Line.Messaging.Webhook.Types
+                       Line.Messaging.Webhook.Validation
+  build-depends:       base >= 4.8 && < 5
+                     , wai >= 3.2.1.1
+                     , http-types >= 0.9.1
+                     , aeson >= 0.11.2.1
+                     , bytestring >= 0.10.6.0
+                     , text >= 1.2.2.1
+                     , transformers >= 0.4.2.0
+                     , cryptohash-sha256 >= 0.11.100.1
+                     , base64-bytestring >= 1.0.0.1
+                     , time >= 1.5.0.1
+                     , http-conduit >= 2.1.11
+                     , scotty >= 0.11.0
+  default-language:    Haskell2010
+  default-extensions:  OverloadedStrings
 
+
 test-suite line-test
-    type: exitcode-stdio-1.0
-    main-is: Spec.hs
-    build-depends:
-        base >=4.9.0.0 && <4.10,
-        line >=2.1.0.0 && <2.2,
-        hspec >=2.2.4 && <2.3,
-        hspec-wai >=0.6.6 && <0.7,
-        QuickCheck >=2.8.2 && <2.9,
-        quickcheck-instances >=0.3.12 && <0.4,
-        text >=1.2.2.1 && <1.3,
-        bytestring >=0.10.8.1 && <0.11,
-        cryptohash-sha256 >=0.11.100.1 && <0.12,
-        base64-bytestring >=1.0.0.1 && <1.1,
-        transformers >=0.5.2.0 && <0.6,
-        scotty >=0.11.0 && <0.12,
-        aeson >=0.11.2.1 && <0.12,
-        raw-strings-qq ==1.1.*,
-        time >=1.6.0.1 && <1.7
-    default-language: Haskell2010
-    default-extensions: OverloadedStrings
-    hs-source-dirs: test
-    other-modules:
-        Line.Messaging.API.TypesSpec
-        Line.Messaging.API.TypesSpecHelper
-        Line.Messaging.WebhookSpec
-        Line.Messaging.Webhook.TypesSpec
-        Line.Messaging.Webhook.TypesSpecHelper
-        Line.Messaging.Webhook.ValidationSpec
-    ghc-options: -threaded -rtsopts -with-rtsopts=-N
+  type:                exitcode-stdio-1.0
+  hs-source-dirs:      test
+  main-is:             Spec.hs
+  other-modules:       Line.Messaging.API.TypesSpec
+                       Line.Messaging.API.TypesSpecHelper
+                       Line.Messaging.WebhookSpec
+                       Line.Messaging.Webhook.TypesSpec
+                       Line.Messaging.Webhook.TypesSpecHelper
+                       Line.Messaging.Webhook.ValidationSpec
+  build-depends:       base
+                     , line
+                     , hspec
+                     , hspec-wai
+                     , QuickCheck
+                     , quickcheck-instances
+                     , text
+                     , bytestring
+                     , cryptohash-sha256
+                     , base64-bytestring
+                     , transformers
+                     , scotty
+                     , aeson
+                     , raw-strings-qq
+                     , time
+  ghc-options:         -threaded -rtsopts -with-rtsopts=-N
+  default-language:    Haskell2010
+  default-extensions:  OverloadedStrings
+
+source-repository head
+  type:     git
+  location: https://github.com/noraesae/line