diff --git a/src/HIE/Bios/Ghc/Doc.hs b/src/HIE/Bios/Ghc/Doc.hs
index 122da6da..8b13d5c4 100644
--- a/src/HIE/Bios/Ghc/Doc.hs
+++ b/src/HIE/Bios/Ghc/Doc.hs
@@ -3,7 +3,14 @@
 module HIE.Bios.Ghc.Doc where
 
 
-import GHC (DynFlags, getPrintUnqual, pprCols, GhcMonad)
+import GHC (DynFlags
+#if __GLASGOW_HASKELL__ < 905
+           , getPrintUnqual
+#endif
+           , pprCols, GhcMonad)
+#if __GLASGOW_HASKELL__ >= 905
+import GHC.Utils.Outputable
+#endif
 
 #if __GLASGOW_HASKELL__ >= 900
 import GHC.Driver.Session (initSDocContext)
@@ -16,6 +23,11 @@ import Pretty (Mode(..), Doc, Style(..), renderStyle, style)
 
 import HIE.Bios.Ghc.Gap (makeUserStyle, pageMode, oneLineMode)
 
+#if __GLASGOW_HASKELL__ >= 905
+getPrintUnqual :: Monad m => m NamePprCtx
+getPrintUnqual = pure neverQualify
+#endif
+
 showPage :: DynFlags -> PprStyle -> SDoc -> String
 showPage dflag stl sdoc = showDocWith dflag pageMode $ runSDoc sdoc scontext
   where
diff --git a/src/HIE/Bios/Ghc/Gap.hs b/src/HIE/Bios/Ghc/Gap.hs
index 14115536..2d5ece4a 100644
--- a/src/HIE/Bios/Ghc/Gap.hs
+++ b/src/HIE/Bios/Ghc/Gap.hs
@@ -217,7 +217,9 @@ pattern RealSrcSpan t <- G.RealSrcSpan t
 ----------------------------------------------------------------
 
 setNoCode :: DynFlags -> DynFlags
-#if __GLASGOW_HASKELL__ >= 901
+#if __GLASGOW_HASKELL__ >= 905
+setNoCode d = d { G.backend = G.noBackend }
+#elif __GLASGOW_HASKELL__ >= 901
 setNoCode d = d { G.backend = G.NoBackend }
 #else
 setNoCode d = d { G.hscTarget = G.HscNothing }
@@ -251,7 +253,11 @@ guessTarget a _ b = G.guessTarget a b
 
 ----------------------------------------------------------------
 
+#if __GLASGOW_HASKELL__ >= 905
+makeUserStyle :: DynFlags -> NamePprCtx -> PprStyle
+#else
 makeUserStyle :: DynFlags -> PrintUnqualified -> PprStyle
+#endif
 #if __GLASGOW_HASKELL__ >= 900
 makeUserStyle _dflags style = mkUserStyle style AllTheWay
 #elif __GLASGOW_HASKELL__ >= 804
diff --git a/src/HIE/Bios/Ghc/Logger.hs b/src/HIE/Bios/Ghc/Logger.hs
index 6bc89504..1036b1f0 100644
--- a/src/HIE/Bios/Ghc/Logger.hs
+++ b/src/HIE/Bios/Ghc/Logger.hs
@@ -1,4 +1,4 @@
-{-# LANGUAGE BangPatterns, CPP #-}
+{-# LANGUAGE BangPatterns, CPP, TypeApplications #-}
 
 module HIE.Bios.Ghc.Logger (
     withLogger
@@ -64,8 +64,10 @@ appendLogRef :: DynFlags -> Gap.PprStyle -> LogRef -> LogAction
 appendLogRef df style (LogRef ref)
 #if __GLASGOW_HASKELL__ < 903
     _ _ sev src
-#else
+#elif __GLASGOW_HASKELL__ < 905
     _ (MCDiagnostic sev _) src
+#else
+    _ (MCDiagnostic sev _ _) src
 #endif
 #if __GLASGOW_HASKELL__ < 900
   _style
@@ -127,7 +129,11 @@ ppErrMsg :: DynFlags -> Gap.PprStyle -> MsgEnvelope GhcMessage -> String
 ppErrMsg dflag style err = ppMsg spn SevError dflag style msg -- ++ ext
    where
      spn = errMsgSpan err
+#if __GLASGOW_HASKELL__ >= 905
+     msg = pprLocMsgEnvelope (defaultDiagnosticOpts @GhcMessage) err
+#else
      msg = pprLocMsgEnvelope err
+#endif
      -- fixme
 #elif __GLASGOW_HASKELL__ >= 902
 errBagToStrList :: DynFlags -> Gap.PprStyle -> Bag (MsgEnvelope DecoratedSDoc) -> [String]