diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7256629..4edbf2c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,6 +15,8 @@ jobs:
 
       - name: Set up a PureScript toolchain
         uses: purescript-contrib/setup-purescript@main
+        with:
+          purescript: "0.14.0-rc3"
 
       - name: Cache PureScript dependencies
         uses: actions/cache@v2
diff --git a/packages.dhall b/packages.dhall
index b5baf39..9c3ee6f 100644
--- a/packages.dhall
+++ b/packages.dhall
@@ -1,4 +1,4 @@
 let upstream =
-      https://github.com/purescript/package-sets/releases/download/psc-0.13.8-20200922/packages.dhall sha256:5edc9af74593eab8834d7e324e5868a3d258bbab75c5531d2eb770d4324a2900
+      https://raw.githubusercontent.com/purescript/package-sets/prepare-0.14/src/packages.dhall
 
 in  upstream
diff --git a/src/Pathy/Name.purs b/src/Pathy/Name.purs
index 186a39b..c50466d 100644
--- a/src/Pathy/Name.purs
+++ b/src/Pathy/Name.purs
@@ -7,15 +7,17 @@ import Data.Newtype (class Newtype)
 import Data.String as S
 import Data.String.NonEmpty (NonEmptyString)
 import Data.String.NonEmpty.CodeUnits as NES
-import Data.Symbol (class IsSymbol, SProxy(..))
+import Data.Symbol (class IsSymbol)
 import Data.Symbol (reflectSymbol) as Symbol
-import Pathy.Phantom (kind DirOrFile)
+import Pathy.Phantom (DirOrFile)
 import Type.Data.Boolean (False) as Symbol
 import Type.Data.Symbol (class Equals) as Symbol
+import Type.Proxy (Proxy(..))
 import Unsafe.Coerce (unsafeCoerce)
 
 -- | A type used for both directory and file names, indexed by `DirOrFile`.
-newtype Name (n :: DirOrFile) = Name NonEmptyString
+newtype Name :: DirOrFile -> Type
+newtype Name n = Name NonEmptyString
 
 derive instance newtypeName :: Newtype (Name n) _
 derive newtype instance eqName :: Eq (Name a)
@@ -92,11 +94,12 @@ alterExtension f n =
 
 -- | A class for creating `Name` values from type-level strings. This allows us
 -- | to guarantee that a name is not empty at compile-time.
+class IsName :: Symbol -> Constraint
 class IsName sym where
-  reflectName :: forall d. SProxy sym -> Name d
+  reflectName :: forall proxy d. proxy sym -> Name d
 
 instance isNameNESymbol :: (IsSymbol s, Symbol.Equals s "" Symbol.False) => IsName s where
-  reflectName _ = asNonEmpty $ Symbol.reflectSymbol (SProxy :: SProxy s)
+  reflectName _ = asNonEmpty $ Symbol.reflectSymbol (Proxy :: Proxy s)
     where
     asNonEmpty :: forall d. String -> Name d
     asNonEmpty = unsafeCoerce
diff --git a/src/Pathy/Path.purs b/src/Pathy/Path.purs
index 0841ab8..724b949 100644
--- a/src/Pathy/Path.purs
+++ b/src/Pathy/Path.purs
@@ -39,11 +39,10 @@ import Data.Identity (Identity(..))
 import Data.Maybe (Maybe(..), maybe)
 import Data.Newtype (un)
 import Data.String.NonEmpty as NES
-import Data.Symbol (SProxy)
 import Data.Tuple (Tuple(..), fst, snd)
 import Partial.Unsafe (unsafeCrashWith)
 import Pathy.Name (class IsName, Name(..), alterExtension, reflectName)
-import Pathy.Phantom (class IsDirOrFile, class IsRelOrAbs, Abs, Dir, File, Rel, foldDirOrFile, foldRelOrAbs, onDirOrFile, onRelOrAbs, kind DirOrFile, kind RelOrAbs)
+import Pathy.Phantom (class IsDirOrFile, class IsRelOrAbs, Abs, Dir, File, Rel, foldDirOrFile, foldRelOrAbs, onDirOrFile, onRelOrAbs, DirOrFile, RelOrAbs)
 import Unsafe.Coerce (unsafeCoerce)
 
 -- | A type that describes a Path. All flavors of paths are described by this
@@ -59,7 +58,8 @@ import Unsafe.Coerce (unsafeCoerce)
 -- |
 -- | This ADT allows invalid paths (e.g. paths inside files), but there is no
 -- | possible way for such paths to be constructed by user-land code.
-data Path (a :: RelOrAbs) (b :: DirOrFile)
+data Path :: RelOrAbs -> DirOrFile -> Type
+data Path a b
   = Init
   | ParentOf (Path Rel Dir)
   | In (Path a Dir) (Name b)
@@ -114,7 +114,7 @@ currentDir = Init
 -- |
 -- | Instead of accepting a runtime value, this function accepts a type-level
 -- | string via a proxy, to ensure the constructed name is not empty.
-file :: forall s. IsName s => SProxy s -> Path Rel File
+file :: forall s proxy. IsName s => proxy s -> Path Rel File
 file = file' <<< reflectName
 
 -- | Creates a path which points to a relative file of the specified name.
@@ -125,7 +125,7 @@ file' = in'
 -- |
 -- | Instead of accepting a runtime value, this function accepts a type-level
 -- | string via a proxy, to ensure the constructed name is not empty.
-dir :: forall s. IsName s => SProxy s -> Path Rel Dir
+dir :: forall s proxy. IsName s => proxy s -> Path Rel Dir
 dir = dir' <<< reflectName
 
 -- | Creates a path which points to a relative directory of the specified name.
diff --git a/src/Pathy/Phantom.purs b/src/Pathy/Phantom.purs
index 2e4b33e..e48c981 100644
--- a/src/Pathy/Phantom.purs
+++ b/src/Pathy/Phantom.purs
@@ -3,7 +3,7 @@ module Pathy.Phantom where
 import Prelude
 
 -- | The kind for the relative/absolute phantom type.
-foreign import kind RelOrAbs
+data RelOrAbs
 
 -- | The phantom type of relative paths.
 foreign import data Rel :: RelOrAbs
@@ -16,9 +16,10 @@ foreign import data Abs :: RelOrAbs
 -- | The provided `onRelOrAbs` function folds over a value indexed by
 -- | `RelOrAbs` to produce a new result, passing proof/coercion functions to
 -- | allow the inner functions to unify their return types if remapping.
-class IsRelOrAbs (a :: RelOrAbs) where
+class IsRelOrAbs :: RelOrAbs -> Constraint
+class IsRelOrAbs a where
   onRelOrAbs
-    :: forall f b r
+    :: forall (f :: RelOrAbs -> DirOrFile -> Type) b r
     . ((f Rel b -> f a b) -> f Rel b -> r)
     -> ((f Abs b -> f a b) -> f Abs b -> r)
     -> f a b
@@ -38,7 +39,7 @@ foldRelOrAbs
 foldRelOrAbs f g = onRelOrAbs (const f) (const g)
 
 -- | The kind for the directory/file phantom type.
-foreign import kind DirOrFile
+data DirOrFile
 
 -- | The phantom type of directories.
 foreign import data Dir :: DirOrFile
@@ -51,7 +52,8 @@ foreign import data File :: DirOrFile
 -- | The provided `onDirOrFile` function folds over a value indexed by
 -- | `DirOrFile` to produce a new result, passing proof/coercion functions to
 -- | allow the inner functions to unify their return types if remapping.
-class IsDirOrFile (b :: DirOrFile) where
+class IsDirOrFile :: DirOrFile -> Constraint
+class IsDirOrFile b where
   onDirOrFile
     :: forall f r
      . ((f Dir -> f b) -> f Dir -> r)
diff --git a/test/Main.purs b/test/Main.purs
index a796f70..2d3ffa2 100644
--- a/test/Main.purs
+++ b/test/Main.purs
@@ -9,7 +9,6 @@ import Data.String as Str
 import Data.String.NonEmpty (NonEmptyString)
 import Data.String.NonEmpty (fromString) as NES
 import Data.String.NonEmpty.CodeUnits (singleton) as NES
-import Data.Symbol (SProxy(..))
 import Data.Tuple (Tuple(..))
 import Effect (Effect)
 import Effect.Console (info)
@@ -17,6 +16,7 @@ import Effect.Exception (throw)
 import Pathy (class IsDirOrFile, class IsRelOrAbs, Abs, Dir, Name(..), Path, Rel, alterExtension, currentDir, debugPrintPath, dir, extension, file, in', joinName, parentOf, parseAbsDir, parseAbsFile, parseRelDir, parseRelFile, peel, posixParser, posixPrinter, printPath, relativeTo, rename, rootDir, sandbox, sandboxAny, splitName, unsandbox, windowsPrinter, (<..>), (<.>), (</>))
 import Pathy.Gen as PG
 import Pathy.Name (reflectName)
+import Type.Proxy (Proxy(..))
 import Test.QuickCheck ((===))
 import Test.QuickCheck as QC
 import Test.QuickCheck.Gen as Gen
@@ -39,13 +39,13 @@ pathPart = asNonEmptyString <$> Gen.suchThat QC.arbitrary (not <<< Str.null)
   asNonEmptyString = unsafeCoerce
 
 dirFoo :: Path Rel Dir
-dirFoo = dir (SProxy :: SProxy "foo")
+dirFoo = dir (Proxy :: Proxy "foo")
 
 dirBar :: Path Rel Dir
-dirBar = dir (SProxy :: SProxy "bar")
+dirBar = dir (Proxy :: Proxy "bar")
 
 dirBaz :: Path Rel Dir
-dirBaz = dir (SProxy :: SProxy "baz")
+dirBaz = dir (Proxy :: Proxy "baz")
 
 parsePrintCheck :: forall a b. IsRelOrAbs a => IsDirOrFile b => Path a b -> Maybe (Path a b) -> QC.Result
 parsePrintCheck input parsed =
@@ -155,22 +155,22 @@ main = do
     "./foo/bar/"
 
   test "windowsPrinter"
-    (printWindowsPath $ rootDir </> dir (SProxy :: SProxy "C") </> dirBar)
+    (printWindowsPath $ rootDir </> dir (Proxy :: Proxy "C") </> dirBar)
     "C:\\bar\\"
 
   test' "(</>) - file with two parents"
     (dirFoo
       </> dirBar
-      </> file (SProxy :: SProxy "image.png"))
+      </> file (Proxy :: Proxy "image.png"))
     "./foo/bar/image.png"
 
   test' "(<.>) - file without extension"
-    (file (SProxy :: SProxy "image")
+    (file (Proxy :: Proxy "image")
       <.> "png")
     "./image.png"
 
   test' "(<.>) - file with extension"
-    (file (SProxy :: SProxy "image.jpg")
+    (file (Proxy :: Proxy "image.jpg")
       <.> "png")
     "./image.png"
 
@@ -179,11 +179,11 @@ main = do
     "./../"
 
   test """printPath windowsPrinter - C:\Users\Default\"""
-    (printPath windowsPrinter $ sandboxAny $ rootDir </> dir (SProxy :: SProxy "C") </> dir (SProxy :: SProxy "Users") </> dir (SProxy :: SProxy "Default"))
+    (printPath windowsPrinter $ sandboxAny $ rootDir </> dir (Proxy :: Proxy "C") </> dir (Proxy :: Proxy "Users") </> dir (Proxy :: Proxy "Default"))
     """C:\Users\Default\"""
 
   test """printPath posixPrinter - /C/Users/Default/"""
-    (printPath posixPrinter $ sandboxAny $ rootDir </> dir (SProxy :: SProxy "C") </> dir (SProxy :: SProxy "Users") </> dir (SProxy :: SProxy "Default"))
+    (printPath posixPrinter $ sandboxAny $ rootDir </> dir (Proxy :: Proxy "C") </> dir (Proxy :: Proxy "Users") </> dir (Proxy :: Proxy "Default"))
     """/C/Users/Default/"""
 
   test """printPath windowsPrinter - \"""
@@ -295,23 +295,23 @@ main = do
     "./foo/"
 
   test "rename - single level deep"
-    (rename (alterExtension (const Nothing)) (file (SProxy :: SProxy "image.png")))
-    (file (SProxy :: SProxy "image"))
+    (rename (alterExtension (const Nothing)) (file (Proxy :: Proxy "image.png")))
+    (file (Proxy :: Proxy "image"))
 
   test """extension (Name ".foo")    == Nothing"""
-    (extension (reflectName (SProxy :: SProxy ".foo")))
+    (extension (reflectName (Proxy :: Proxy ".foo")))
     (Nothing)
   test """extension (Name "foo.")    == Nothing"""
-    (extension (reflectName (SProxy :: SProxy "foo.")))
+    (extension (reflectName (Proxy :: Proxy "foo.")))
     (Nothing)
   test """extension (Name "foo")    == Nothing"""
-    (extension (reflectName (SProxy :: SProxy "foo")))
+    (extension (reflectName (Proxy :: Proxy "foo")))
     (Nothing)
   test """extension (Name ".")       == Nothing"""
-    (extension (reflectName (SProxy :: SProxy ".")))
+    (extension (reflectName (Proxy :: Proxy ".")))
     (Nothing)
   test """extension (Name "foo.baz") == (Just "baz")"""
-    (extension (reflectName (SProxy :: SProxy "foo.baz")))
+    (extension (reflectName (Proxy :: Proxy "foo.baz")))
     (NES.fromString "baz")
 
   test "sandbox - fail when relative path lies outside sandbox (above)"
@@ -344,27 +344,27 @@ main = do
 
   test "parseRelFile - image.png"
     (parseRelFile posixParser "image.png")
-    (Just $ file (SProxy :: SProxy "image.png"))
+    (Just $ file (Proxy :: Proxy "image.png"))
 
   test "parseRelFile - ./image.png"
     (parseRelFile posixParser "./image.png")
-    (Just $ file (SProxy :: SProxy "image.png"))
+    (Just $ file (Proxy :: Proxy "image.png"))
 
   test "parseRelFile - foo/image.png"
     (parseRelFile posixParser "foo/image.png")
-    (Just $ dirFoo </> file (SProxy :: SProxy "image.png"))
+    (Just $ dirFoo </> file (Proxy :: Proxy "image.png"))
 
   test "parseRelFile - ../foo/image.png"
     (parseRelFile posixParser "../foo/image.png")
-    (Just $ currentDir <..> dirFoo </> file (SProxy :: SProxy "image.png"))
+    (Just $ currentDir <..> dirFoo </> file (Proxy :: Proxy "image.png"))
 
   test "parseAbsFile - /image.png"
     (parseAbsFile posixParser "/image.png")
-    (Just $ rootDir </> file (SProxy :: SProxy "image.png"))
+    (Just $ rootDir </> file (Proxy :: Proxy "image.png"))
 
   test "parseAbsFile - /foo/image.png"
     (parseAbsFile posixParser "/foo/image.png")
-    (Just $ rootDir </> dirFoo </> file (SProxy :: SProxy "image.png"))
+    (Just $ rootDir </> dirFoo </> file (Proxy :: Proxy "image.png"))
 
   test "parseRelDir - empty string"
     (parseRelDir posixParser "")