diff --git a/haddock-api/haddock-api.cabal b/haddock-api/haddock-api.cabal
index 384b5794dd6cb6941e0e07654ff0c1f1f40cde54..fa14eb50f1af5adced8094b6fc92bcb3385fca68 100644
--- a/haddock-api/haddock-api.cabal
+++ b/haddock-api/haddock-api.cabal
@@ -44,7 +44,7 @@ library
                , Cabal           ^>= 2.4.0
                , ghc             ^>= 8.6
                , ghc-paths       ^>= 0.1.0.9
-               , haddock-library ^>= 1.6.1
+               , haddock-library ^>= 1.7.0
                , xhtml           ^>= 3000.2.2
 
   -- Versions for the dependencies below are transitively pinned by
@@ -169,7 +169,7 @@ test-suite spec
   build-depends: Cabal           ^>= 2.4
                , ghc             ^>= 8.6
                , ghc-paths       ^>= 0.1.0.9
-               , haddock-library ^>= 1.6.1
+               , haddock-library ^>= 1.7.0
                , xhtml           ^>= 3000.2.2
                , hspec           >= 2.4.4 && < 2.6
                , QuickCheck      ^>= 2.11
diff --git a/haddock-library/CHANGES.md b/haddock-library/CHANGES.md
index c62edd85903923b2396a8a392df4fd532c327315..0175b6af570e626ef2793f70695302f5654d0faf 100644
--- a/haddock-library/CHANGES.md
+++ b/haddock-library/CHANGES.md
@@ -1,3 +1,7 @@
+## Changes in version 1.7.0
+
+ * Make `Documentation.Haddock.Parser.Monad` an internal module
+
 ## Changes in version 1.6.1
 
  * Replace `attoparsec` with `parsec` (#799)
diff --git a/haddock-library/haddock-library.cabal b/haddock-library/haddock-library.cabal
index 74c928b24daeef2fde20b1d5890045e2bd11333e..0b4405b9d24dd0d05e004f0bae20bad63fbebb29 100644
--- a/haddock-library/haddock-library.cabal
+++ b/haddock-library/haddock-library.cabal
@@ -1,6 +1,6 @@
 cabal-version:        2.0
 name:                 haddock-library
-version:              1.6.1
+version:              1.7.0
 synopsis:             Library exposing some functionality of Haddock.
 description:          Haddock is a documentation-generation tool for Haskell
                       libraries. These modules expose some functionality of it
@@ -35,14 +35,14 @@ library
     Documentation.Haddock.Doc
     Documentation.Haddock.Markup
     Documentation.Haddock.Parser
-    Documentation.Haddock.Parser.Monad
     Documentation.Haddock.Types
     Documentation.Haddock.Utf8
 
   other-modules:
     Documentation.Haddock.Parser.Util
+    Documentation.Haddock.Parser.Monad
 
-  ghc-options: -funbox-strict-fields -Wall -fwarn-tabs -O2
+  ghc-options: -funbox-strict-fields -Wall -fwarn-tabs
   if impl(ghc >= 8.0)
     ghc-options: -Wcompat -Wnoncanonical-monad-instances -Wnoncanonical-monadfail-instances