diff --git a/LICENSE.markdown b/LICENSE.markdown
--- a/LICENSE.markdown
+++ b/LICENSE.markdown
@@ -1,13 +1,13 @@
-# [The MIT License](https://opensource.org/licenses/MIT)
+MIT License
 
-Copyright 2017 Taylor Fausak
+Copyright (c) 2018 Taylor Fausak
 
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
 
 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.
diff --git a/library/Salve.hs b/library/Salve.hs
--- a/library/Salve.hs
+++ b/library/Salve.hs
@@ -147,49 +147,49 @@
 --     extension simply to deal with version numbers.
 
 -- * Types
-Version,
-PreRelease,
-Build,
-Constraint,
+Salve.Version,
+Salve.PreRelease,
+Salve.Build,
+Salve.Constraint,
 
 -- * Constructors
-makeVersion,
-initialVersion,
+Salve.makeVersion,
+Salve.initialVersion,
 
 -- * Parsing
-parseVersion,
-parsePreRelease,
-parseBuild,
-parseConstraint,
+Salve.parseVersion,
+Salve.parsePreRelease,
+Salve.parseBuild,
+Salve.parseConstraint,
 
 -- ** Unsafe
 -- | These functions can be used to unsafely parse strings. Instead of
 -- returning 'Nothing', they raise an exception. Only use these if you are sure
 -- the string can be successfully parsed!
-unsafeParseVersion,
-unsafeParsePreRelease,
-unsafeParseBuild,
-unsafeParseConstraint,
+Salve.unsafeParseVersion,
+Salve.unsafeParsePreRelease,
+Salve.unsafeParseBuild,
+Salve.unsafeParseConstraint,
 
 -- * Rendering
-renderVersion,
-renderPreRelease,
-renderBuild,
-renderConstraint,
+Salve.renderVersion,
+Salve.renderPreRelease,
+Salve.renderBuild,
+Salve.renderConstraint,
 
 -- * Predicates
-isUnstable,
-isStable,
+Salve.isUnstable,
+Salve.isStable,
 
 -- * Conversions
-fromBaseVersion,
-toBaseVersion,
+Salve.fromBaseVersion,
+Salve.toBaseVersion,
 
 -- * Helpers
-bumpMajor,
-bumpMinor,
-bumpPatch,
-satisfiesConstraint,
+Salve.bumpMajor,
+Salve.bumpMinor,
+Salve.bumpPatch,
+Salve.satisfiesConstraint,
 
 -- * Lenses
 -- | These lenses can be used to access and modify specific parts of a
@@ -199,11 +199,11 @@
 -- the @RankNTypes@ language extension. The type signature
 -- @'Functor' f => (a -> f a) -> 'Version' -> f 'Version'@ is the same as
 -- @Lens' 'Version' a@, which you may already be familiar with.
-majorLens,
-minorLens,
-patchLens,
-preReleasesLens,
-buildsLens,
+Salve.majorLens,
+Salve.minorLens,
+Salve.patchLens,
+Salve.preReleasesLens,
+Salve.buildsLens,
 
 -- * Examples
 -- | These examples are provided to showcase functionality and explain weird
@@ -604,7 +604,8 @@
 --     True
 ) where
 
-import Salve.Internal
+import qualified Salve.Internal as Salve
 
 -- $setup
 -- >>> import Control.Applicative
+-- >>> import Salve
diff --git a/library/Salve/Internal.hs b/library/Salve/Internal.hs
--- a/library/Salve/Internal.hs
+++ b/library/Salve/Internal.hs
@@ -4,7 +4,51 @@
 -- | WARNING: This module should be considered private! If you find yourself
 -- wanting to import something from this module, please open an issue to get
 -- that thing exported from "Salve".
-module Salve.Internal where
+module Salve.Internal
+  ( Version(..)
+  , PreRelease(..)
+  , Build(..)
+  , Constraint(..)
+  , makeVersion
+  , initialVersion
+  , parseVersion
+  , parsePreRelease
+  , parseBuild
+  , parseConstraint
+  , unsafeParseVersion
+  , unsafeParsePreRelease
+  , unsafeParseBuild
+  , unsafeParseConstraint
+  , renderVersion
+  , renderPreRelease
+  , renderBuild
+  , renderConstraint
+  , isUnstable
+  , isStable
+  , fromBaseVersion
+  , toBaseVersion
+  , bumpMajor
+  , bumpMinor
+  , bumpPatch
+  , satisfiesConstraint
+  , majorLens
+  , minorLens
+  , patchLens
+  , preReleasesLens
+  , buildsLens
+  , Operator(..)
+  , Wildcard(..)
+  , constraintLT
+  , constraintLE
+  , constraintEQ
+  , constraintGE
+  , constraintGT
+  , constraintAnd
+  , constraintOr
+  , constraintHyphen
+  , constraintTilde
+  , constraintCaret
+  ) where
 
 import qualified Control.Monad as Monad
 import qualified Data.Char as Char
@@ -45,7 +89,7 @@
   , versionPatch :: Word.Word64
   , versionPreReleases :: [PreRelease]
   , versionBuilds :: [Build]
-  } deriving (Data.Data, Eq, Generics.Generic, Read, Show, Data.Typeable)
+  } deriving (Data.Data, Eq, Generics.Generic, Read, Show)
 
 -- | In general, versions compare in the way that you would expect. First the
 -- major version numbers are compared, then the minors, then the patches.
@@ -108,7 +152,7 @@
 data PreRelease
   = PreReleaseNumeric Word.Word64
   | PreReleaseTextual String
-  deriving (Data.Data, Eq, Generics.Generic, Read, Show, Data.Typeable)
+  deriving (Data.Data, Eq, Generics.Generic, Read, Show)
 
 -- | Numeric pre-releases are always less than textual pre-releases.
 --
@@ -141,7 +185,7 @@
 --
 -- Use 'parseBuild' to create builds.
 newtype Build = Build String
-  deriving (Data.Data, Eq, Generics.Generic, Read, Show, Data.Typeable)
+  deriving (Data.Data, Eq, Generics.Generic, Read, Show)
 
 -- | Constrains allowable version numbers.
 --
@@ -153,7 +197,7 @@
   | ConstraintWildcard Wildcard
   | ConstraintAnd Constraint Constraint
   | ConstraintOr Constraint Constraint
-  deriving (Data.Data, Eq, Generics.Generic, Ord, Read, Show, Data.Typeable)
+  deriving (Data.Data, Eq, Generics.Generic, Ord, Read, Show)
 
 -- | Makes a new version number.
 --
@@ -603,13 +647,13 @@
   | OperatorGT
   | OperatorTilde
   | OperatorCaret
-  deriving (Data.Data, Eq, Generics.Generic, Ord, Read, Show, Data.Typeable)
+  deriving (Data.Data, Eq, Generics.Generic, Ord, Read, Show)
 
 data Wildcard
   = WildcardMajor
   | WildcardMinor Word.Word64
   | WildcardPatch Word.Word64 Word.Word64
-  deriving (Data.Data, Eq, Generics.Generic, Ord, Read, Show, Data.Typeable)
+  deriving (Data.Data, Eq, Generics.Generic, Ord, Read, Show)
 
 -- ** Constructors
 
@@ -916,7 +960,7 @@
   | SCGT Version
   | SCAnd SimpleConstraint SimpleConstraint
   | SCOr SimpleConstraint SimpleConstraint
-  deriving (Data.Data, Eq, Generics.Generic, Ord, Read, Show, Data.Typeable)
+  deriving (Data.Data, Eq, Generics.Generic, Ord, Read, Show)
 
 mkV :: Word.Word64 -> Word.Word64 -> Word.Word64 -> Version
 mkV m n p = makeVersion m n p [] []
diff --git a/package.yaml b/package.yaml
new file mode 100644
--- /dev/null
+++ b/package.yaml
@@ -0,0 +1,37 @@
+name: salve
+version: 1.0.2
+
+category: Distribution
+description:
+  Salve provides semantic version (SemVer) numbers and constraints (ranges).
+extra-source-files:
+  - CHANGELOG.markdown
+  - package.yaml
+  - README.markdown
+  - stack.yaml
+github: tfausak/salve
+license-file: LICENSE.markdown
+license: MIT
+maintainer: Taylor Fausak
+synopsis: Semantic version numbers and constraints.
+
+dependencies:
+  base: '>= 4.9.0 && < 4.12'
+ghc-options:
+  - -Weverything
+  - -Wno-implicit-prelude
+  - -Wno-safe
+  - -Wno-unsafe
+
+library:
+  source-dirs: library
+
+tests:
+  doctest:
+    dependencies:
+      doctest: '>= 0.11.0 && < 0.16'
+    ghc-options:
+      - -rtsopts
+      - -threaded
+    main: Main.hs
+    source-dirs: tests
diff --git a/salve.cabal b/salve.cabal
--- a/salve.cabal
+++ b/salve.cabal
@@ -2,10 +2,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 64abeddf64cde776a6bbaae042c6dc3cb37b4f3b59bc9f40b3fb10385fee0de7
+-- hash: f3708dd02a35fe7ffbc6b05a8be5c9759450cab1deccae4024ff307340736818
 
 name:           salve
-version:        1.0.0
+version:        1.0.2
 synopsis:       Semantic version numbers and constraints.
 description:    Salve provides semantic version (SemVer) numbers and constraints (ranges).
 category:       Distribution
@@ -19,7 +19,9 @@
 
 extra-source-files:
     CHANGELOG.markdown
+    package.yaml
     README.markdown
+    stack.yaml
 
 source-repository head
   type: git
@@ -28,9 +30,9 @@
 library
   hs-source-dirs:
       library
-  ghc-options: -Wall
+  ghc-options: -Weverything -Wno-implicit-prelude -Wno-safe -Wno-unsafe
   build-depends:
-      base >=4.8.2 && <4.11
+      base >=4.9.0 && <4.12
   exposed-modules:
       Salve
       Salve.Internal
@@ -43,10 +45,10 @@
   main-is: Main.hs
   hs-source-dirs:
       tests
-  ghc-options: -Wall -rtsopts -threaded
+  ghc-options: -Weverything -Wno-implicit-prelude -Wno-safe -Wno-unsafe -rtsopts -threaded
   build-depends:
-      base >=4.8.2 && <4.11
-    , doctest >=0.11.2 && <0.14
+      base >=4.9.0 && <4.12
+    , doctest >=0.11.0 && <0.16
   other-modules:
       Paths_salve
   default-language: Haskell2010
diff --git a/stack.yaml b/stack.yaml
new file mode 100644
--- /dev/null
+++ b/stack.yaml
@@ -0,0 +1,1 @@
+resolver: lts-11.0
diff --git a/tests/Main.hs b/tests/Main.hs
--- a/tests/Main.hs
+++ b/tests/Main.hs
@@ -1,7 +1,7 @@
-import Test.DocTest
+import qualified Test.DocTest as Doctest
 
 main :: IO ()
-main = doctest
+main = Doctest.doctest
   [ "library/Salve/Internal.hs"
   , "library/Salve.hs"
   ]