diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+## 0.12.0
+
+* Drop system-filepath
+
 ## 0.11.1.1
 
 * Compatibility with time >= 1.5 [#100](https://github.com/snoyberg/classy-prelude/pull/100)
diff --git a/ClassyPrelude.hs b/ClassyPrelude.hs
--- a/ClassyPrelude.hs
+++ b/ClassyPrelude.hs
@@ -197,7 +197,6 @@
 import Data.Builder
 import Data.MinLen
 import Data.ByteVector
-import qualified Filesystem.Path.CurrentOS as F
 import System.IO (Handle, stdin, stdout, stderr, hClose)
 
 import Debug.Trace (trace, traceShow)
@@ -465,20 +464,19 @@
 traceShowM = traceM . show
 
 fpToString :: FilePath -> String
-fpToString = F.encodeString
+fpToString = id
+{-# DEPRECATED fpToString "Now same as id" #-}
 
 fpFromString :: String -> FilePath
-fpFromString = F.decodeString
+fpFromString = id
+{-# DEPRECATED fpFromString "Now same as id" #-}
 
 -- | Translates a 'FilePath' to a 'Text'
 --
 -- Warns if there are non-unicode sequences in the file name
-fpToTextWarn :: MonadIO m => FilePath -> m Text
-fpToTextWarn fp = case F.toText fp of
-    Right ok -> return ok
-    Left bad -> do
-        putStrLn $ pack $ "non-unicode filepath: " ++ F.encodeString fp
-        return bad
+fpToTextWarn :: Monad m => FilePath -> m Text
+fpToTextWarn = return . pack
+{-# DEPRECATED fpToTextWarn "Use pack" #-}
 
 -- | Translates a 'FilePath' to a 'Text'
 --
@@ -489,9 +487,8 @@
 -- a filename will translate properly into a 'Text'.
 -- If you created the filename, this should be the case.
 fpToTextEx :: FilePath -> Text
-fpToTextEx fp = either (const $ error errorMsg) id $ F.toText fp
-  where
-    errorMsg = "fpToTextEx: non-unicode filepath: " ++ F.encodeString fp
+fpToTextEx = pack
+{-# DEPRECATED fpToTextEx "Use pack" #-}
 
 -- | Translates a 'FilePath' to a 'Text'
 -- This translation is not correct for a (unix) filename
@@ -502,10 +499,12 @@
 -- If you control or otherwise understand the filenames
 -- and believe them to be unicode valid consider using 'fpToTextEx' or 'fpToTextWarn'
 fpToText :: FilePath -> Text
-fpToText = either id id . F.toText
+fpToText = pack
+{-# DEPRECATED fpToText "Use pack" #-}
 
 fpFromText :: Text -> FilePath
-fpFromText = F.fromText
+fpFromText = unpack
+{-# DEPRECATED fpFromText "Use unpack" #-}
 
 -- Below is a lot of coding for classy-prelude!
 -- These functions are restricted to lists right now.
diff --git a/classy-prelude.cabal b/classy-prelude.cabal
--- a/classy-prelude.cabal
+++ b/classy-prelude.cabal
@@ -1,5 +1,5 @@
 name:                classy-prelude
-version:             0.11.1.1
+version:             0.12.0
 synopsis:            A typeclass-based Prelude.
 description:         Modern best practices without name collisions. No partial functions are exposed, but modern data structures are, without requiring import lists. Qualified modules also are not needed: instead operations are based on type-classes from the mono-traversable package.
 
@@ -16,8 +16,7 @@
 library
   exposed-modules:     ClassyPrelude
   build-depends:       base                          >= 4          && < 5
-                     , basic-prelude                 >= 0.3.10     && < 0.4
-                     , system-filepath               >= 0.4        && < 0.5
+                     , basic-prelude                 >= 0.4        && < 0.5
                      , transformers
                      , containers                    >= 0.4.2
                      , text