diff --git a/plugins/hls-fourmolu-plugin/hls-fourmolu-plugin.cabal b/plugins/hls-fourmolu-plugin/hls-fourmolu-plugin.cabal
index c1b4ed1974d..aec7882f28e 100644
--- a/plugins/hls-fourmolu-plugin/hls-fourmolu-plugin.cabal
+++ b/plugins/hls-fourmolu-plugin/hls-fourmolu-plugin.cabal
@@ -26,13 +26,12 @@ library
   buildable: True
   exposed-modules:
       Ide.Plugin.Fourmolu
-    , Ide.Plugin.Fourmolu.Shim
   hs-source-dirs:   src
   ghc-options:      -Wall
   build-depends:
     , base            >=4.12 && <5
     , filepath
-    , fourmolu        ^>=0.3 || ^>=0.4 || ^>= 0.6 || ^>= 0.7 || ^>= 0.8 || ^>= 0.9 || ^>= 0.10 || ^>= 0.11 || ^>= 0.12 || ^>= 0.13
+    , fourmolu        ^>= 0.9 || ^>= 0.10 || ^>= 0.11 || ^>= 0.12 || ^>= 0.13
     , ghc
     , ghc-boot-th
     , ghcide          == 2.1.0.0
diff --git a/plugins/hls-fourmolu-plugin/src/Ide/Plugin/Fourmolu.hs b/plugins/hls-fourmolu-plugin/src/Ide/Plugin/Fourmolu.hs
index 3ae5baf1bc5..7ee11784656 100644
--- a/plugins/hls-fourmolu-plugin/src/Ide/Plugin/Fourmolu.hs
+++ b/plugins/hls-fourmolu-plugin/src/Ide/Plugin/Fourmolu.hs
@@ -34,7 +34,6 @@ import           Development.IDE.GHC.Compat      as Compat hiding (Cpp, Warning,
 import qualified Development.IDE.GHC.Compat.Util as S
 import           GHC.LanguageExtensions.Type     (Extension (Cpp))
 import           Ide.Plugin.Error
-import           Ide.Plugin.Fourmolu.Shim
 import           Ide.Plugin.Properties
 import           Ide.PluginUtils                 (makeDiffTextEdit)
 import           Ide.Types
@@ -43,6 +42,7 @@ import           Language.LSP.Protocol.Message
 import           Language.LSP.Protocol.Types
 import           Language.LSP.Server             hiding (defaultConfig)
 import           Ormolu
+import           Ormolu.Config
 import           System.Exit
 import           System.FilePath
 import           System.Process.Run              (cwd, proc)
@@ -87,9 +87,9 @@ provider recorder plId ideState typ contents fp fo = ExceptT $ withIndefinitePro
                   where
                     printerOpts = cfgFilePrinterOpts fourmoluConfig
                     config =
-                        addFixityOverrides (cfgFileFixities fourmoluConfig) $
                         defaultConfig
                             { cfgDynOptions = map DynOption fileOpts
+                            , cfgFixityOverrides = cfgFileFixities fourmoluConfig
                             , cfgRegion = region
                             , cfgDebug = False
                             , cfgPrinterOpts =
@@ -112,7 +112,7 @@ provider recorder plId ideState typ contents fp fo = ExceptT $ withIndefinitePro
                                 }
                         throwError $ PluginInternalError errorMessage
                       where
-                        errorMessage = "Failed to load " <> T.pack f <> ": " <> T.pack (showParseError err)
+                        errorMessage = "Failed to load " <> T.pack f <> ": " <> T.pack (show err)
   where
     fp' = fromNormalizedFilePath fp
     title = "Formatting " <> T.pack (takeFileName fp')
diff --git a/plugins/hls-fourmolu-plugin/src/Ide/Plugin/Fourmolu/Shim.hs b/plugins/hls-fourmolu-plugin/src/Ide/Plugin/Fourmolu/Shim.hs
deleted file mode 100644
index a97327cd7ed..00000000000
--- a/plugins/hls-fourmolu-plugin/src/Ide/Plugin/Fourmolu/Shim.hs
+++ /dev/null
@@ -1,75 +0,0 @@
-{-# LANGUAGE CPP #-}
-
-module Ide.Plugin.Fourmolu.Shim (
-  -- * FourmoluConfig
-  cfgFilePrinterOpts,
-  cfgFileFixities,
-  emptyConfig,
-
-  -- * FixityMap
-  addFixityOverrides,
-
-  -- * ConfigParseError
-  showParseError,
-) where
-
-import           Ormolu.Config
-
-#if MIN_VERSION_fourmolu(0,7,0)
-import           Ormolu.Fixity
-#endif
-
-{-- Backport FourmoluConfig --}
-
-#if MIN_VERSION_fourmolu(0,7,0)
--- these functions are now defined
-#else
-type FourmoluConfig = PrinterOptsPartial
-
-cfgFilePrinterOpts :: FourmoluConfig -> PrinterOptsPartial
-cfgFilePrinterOpts = id
-
-cfgFileFixities :: FourmoluConfig -> FixityOverrides
-cfgFileFixities _ = mempty
-#endif
-
-#if MIN_VERSION_fourmolu(0,8,1)
--- emptyConfig now provided
-#elif MIN_VERSION_fourmolu(0,7,0)
-emptyConfig :: FourmoluConfig
-emptyConfig =
-  FourmoluConfig
-    { cfgFilePrinterOpts = mempty
-    , cfgFileFixities = mempty
-    }
-#else
-emptyConfig :: FourmoluConfig
-emptyConfig = mempty
-#endif
-
-{-- Backport FixityOverrides --}
-
-#if MIN_VERSION_fourmolu(0,13,0)
-addFixityOverrides :: FixityOverrides -> Config region -> Config region
-addFixityOverrides fixities cfg = cfg{cfgFixityOverrides = fixities}
-#elif MIN_VERSION_fourmolu(0,7,0)
-type FixityOverrides = FixityMap
-
-addFixityOverrides :: FixityOverrides -> Config region -> Config region
-addFixityOverrides fixities cfg = cfg{cfgFixityOverrides = fixities}
-#else
-type FixityOverrides = ()
-
-addFixityOverrides :: FixityOverrides -> Config region -> Config region
-addFixityOverrides _ = id
-#endif
-
-{-- Backport ConfigParseError --}
-
-#if MIN_VERSION_fourmolu(0,7,0)
-showParseError :: Show parseException => parseException -> String
-showParseError = show
-#else
-showParseError :: (pos, String) -> String
-showParseError = snd
-#endif