diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Change Log for rib
 
+## 0.12
+
+- Removed pandoc-include-code
+- Allow dhall 1.30
+- default.nix: Allow overriding compiler
+
 ## 0.10.0.0
 
 - API
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -15,13 +15,13 @@
 
 Use ghcid for quicker compilation cycles:
 
-```
+```bash
 nix-shell --run ghcid
 ```
 
 To test your changes, clone [rib-sample](https://github.com/srid/rib-sample) and run it using your local rib checkout:
 
-```
+```bash
 cd ..
 git clone https://github.com/srid/rib-sample.git
 cd rib-sample
diff --git a/rib.cabal b/rib.cabal
--- a/rib.cabal
+++ b/rib.cabal
@@ -1,6 +1,6 @@
 cabal-version: 2.4
 name: rib
-version: 0.10.0.0
+version: 0.12.0.0
 license: BSD-3-Clause
 copyright: 2019 Sridhar Ratnakumar
 maintainer: srid@srid.ca
@@ -32,12 +32,12 @@
     build-depends:
         aeson >=1.4.2 && <1.5,
         async,
-        base-noprelude >=4.7 && <5,
+        base-noprelude >=4.12 && <4.14,
         binary >=0.8.6 && <0.9,
         clay >=0.13.3,
         cmdargs >=0.10.20 && <0.11,
         containers >=0.6.0 && <0.7,
-        dhall >= 1.30 && <1.31,
+        dhall >= 1.30 && <1.33,
         directory >= 1.0 && <2.0,
         exceptions,
         foldl,
@@ -51,13 +51,13 @@
         mtl >=2.2.2 && <2.3,
         optparse-applicative >= 0.15,
         pandoc >=2.7 && <3,
-        pandoc-include-code >=1.5 && <1.6,
         pandoc-types >=1.20,
-        relude >= 0.6 && < 0.7,
+        relude >= 0.6 && < 0.8,
         safe-exceptions,
         shake >= 0.18.5,
         text >=1.2.3 && <1.3,
-        time >= 1.9,
+        time,
+        iso8601-time,
         wai >=3.2.2 && <3.3,
         wai-app-static >=3.1.6 && <3.2,
         warp
@@ -86,7 +86,7 @@
   hs-source-dirs: test 
   main-is: Spec.hs
   build-depends:
-    base-noprelude >=4.7 && <5,
+    base-noprelude >=4.12 && <4.14,
     relude,
     hspec,
     QuickCheck
diff --git a/src/Rib/Extra/OpenGraph.hs b/src/Rib/Extra/OpenGraph.hs
--- a/src/Rib/Extra/OpenGraph.hs
+++ b/src/Rib/Extra/OpenGraph.hs
@@ -12,7 +12,7 @@
 where
 
 import Data.Time (UTCTime)
-import Data.Time.Format.ISO8601 (formatShow, iso8601Format)
+import Data.Time.ISO8601 (formatISO8601)
 import Lucid
 import Lucid.Base (makeAttribute)
 import Relude
@@ -21,16 +21,15 @@
 -- The OpenGraph metadata
 --
 -- This type can be directly rendered to HTML using `toHTML`.
-data OpenGraph
-  = OpenGraph
-      { _openGraph_title :: Text,
-        _openGraph_url :: Maybe URI.URI,
-        _openGraph_author :: Maybe Text,
-        _openGraph_description :: Maybe Text,
-        _openGraph_siteName :: Text,
-        _openGraph_type :: Maybe OGType,
-        _openGraph_image :: Maybe URI.URI
-      }
+data OpenGraph = OpenGraph
+  { _openGraph_title :: Text,
+    _openGraph_url :: Maybe URI.URI,
+    _openGraph_author :: Maybe Text,
+    _openGraph_description :: Maybe Text,
+    _openGraph_siteName :: Text,
+    _openGraph_type :: Maybe OGType,
+    _openGraph_image :: Maybe URI.URI
+  }
   deriving (Eq, Show)
 
 instance ToHtml OpenGraph where
@@ -66,14 +65,13 @@
       metaOg "type" "website"
 
 -- TODO: _article_profile :: [Profile]
-data Article
-  = Article
-      { _article_section :: Maybe Text,
-        _article_modifiedTime :: Maybe UTCTime,
-        _article_publishedTime :: Maybe UTCTime,
-        _article_expirationTime :: Maybe UTCTime,
-        _article_tag :: [Text]
-      }
+data Article = Article
+  { _article_section :: Maybe Text,
+    _article_modifiedTime :: Maybe UTCTime,
+    _article_publishedTime :: Maybe UTCTime,
+    _article_expirationTime :: Maybe UTCTime,
+    _article_tag :: [Text]
+  }
   deriving (Eq, Show)
 
 instance ToHtml Article where
@@ -86,7 +84,7 @@
     metaOg "article:tag" `mapM_` _article_tag
     where
       metaOgTime k t =
-        metaOg k $ toText $ formatShow iso8601Format t
+        metaOg k $ toText $ formatISO8601 t
 
 -- Open graph meta element
 metaOg :: Applicative m => Text -> Text -> HtmlT m ()
diff --git a/src/Rib/Parser/Pandoc.hs b/src/Rib/Parser/Pandoc.hs
--- a/src/Rib/Parser/Pandoc.hs
+++ b/src/Rib/Parser/Pandoc.hs
@@ -3,8 +3,6 @@
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE Rank2Types #-}
 {-# LANGUAGE ScopedTypeVariables #-}
-{-# LANGUAGE TypeApplications #-}
-{-# LANGUAGE ViewPatterns #-}
 
 -- | Helpers for working with Pandoc documents
 module Rib.Parser.Pandoc
@@ -36,9 +34,8 @@
 import Rib.Shake (ribInputDir)
 import System.FilePath
 import Text.Pandoc
-import Text.Pandoc.Filter.IncludeCode (includeCode)
 import qualified Text.Pandoc.Readers
-import Text.Pandoc.Walk (query, walkM)
+import Text.Pandoc.Walk (query)
 import Text.Pandoc.Writers.Shared (toTableOfContents)
 
 -- | Pure version of `parse`
@@ -61,10 +58,7 @@
     inputDir <- ribInputDir
     content <- toText <$> readFile' (inputDir </> f)
     fmap (first show) $ runExceptT $ do
-      v' <- runIO' $ textReader readerSettings content
-      liftIO $ walkM includeSources v'
-  where
-    includeSources = includeCode $ Just $ Format "html5"
+      runIO' $ textReader readerSettings content
 
 -- | Render a Pandoc document to HTML
 render :: Monad m => Pandoc -> HtmlT m ()