diff --git a/ghc-lib-parser.cabal b/ghc-lib-parser.cabal
--- a/ghc-lib-parser.cabal
+++ b/ghc-lib-parser.cabal
@@ -1,7 +1,7 @@
 cabal-version: >=1.22
 build-type: Simple
 name: ghc-lib-parser
-version: 8.10.2.20200808
+version: 8.10.2.20200916
 license: BSD3
 license-file: LICENSE
 category: Development
@@ -56,7 +56,6 @@
 
 library
     default-language:   Haskell2010
-    default-extensions: NoImplicitPrelude
     exposed: False
     include-dirs:
         includes
@@ -119,6 +118,8 @@
         TypeSynonymInstances
         UnboxedTuples
         UndecidableInstances
+    default-extensions:
+        NoImplicitPrelude
     c-sources:
         libraries/ghc-heap/cbits/HeapPrim.cmm
         compiler/cbits/genSym.c
diff --git a/libraries/ghc-heap/GHC/Exts/Heap/InfoTable.hsc b/libraries/ghc-heap/GHC/Exts/Heap/InfoTable.hsc
--- a/libraries/ghc-heap/GHC/Exts/Heap/InfoTable.hsc
+++ b/libraries/ghc-heap/GHC/Exts/Heap/InfoTable.hsc
@@ -1,3 +1,4 @@
+{-# LANGUAGE NoMonoLocalBinds #-}
 module GHC.Exts.Heap.InfoTable
     ( module GHC.Exts.Heap.InfoTable.Types
     , itblSize
diff --git a/libraries/ghc-heap/GHC/Exts/Heap/InfoTableProf.hsc b/libraries/ghc-heap/GHC/Exts/Heap/InfoTableProf.hsc
--- a/libraries/ghc-heap/GHC/Exts/Heap/InfoTableProf.hsc
+++ b/libraries/ghc-heap/GHC/Exts/Heap/InfoTableProf.hsc
@@ -1,3 +1,4 @@
+{-# LANGUAGE NoMonoLocalBinds #-}
 module GHC.Exts.Heap.InfoTableProf
     ( module GHC.Exts.Heap.InfoTable.Types
     , itblSize