diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# doctemplates
+#( doctemplates
 
 [![CI
 tests](https://github.com/jgm/doctemplates/workflows/CI%20tests/badge.svg)](https://github.com/jgm/doctemplates/actions)
diff --git a/doctemplates.cabal b/doctemplates.cabal
--- a/doctemplates.cabal
+++ b/doctemplates.cabal
@@ -1,5 +1,5 @@
 name:                doctemplates
-version:             0.10.0.2
+version:             0.11
 synopsis:            Pandoc-style document templates
 description:         This is the text templating system used by pandoc.
                      It supports variable interpolation, iteration,
@@ -32,7 +32,6 @@
                        safe,
                        text-conversions,
                        aeson,
-                       HsYAML >= 0.2 && < 0.3,
                        text,
                        doclayout >= 0.4 && < 0.5,
                        containers,
@@ -73,7 +72,7 @@
   Build-Depends:   doctemplates,
                    doclayout >= 0.4 && < 0.5,
                    base >= 4.8 && < 5,
-                   criterion >= 1.0 && < 1.6,
+                   criterion >= 1.0,
                    filepath,
                    aeson,
                    text,
diff --git a/src/Text/DocTemplates/Internal.hs b/src/Text/DocTemplates/Internal.hs
--- a/src/Text/DocTemplates/Internal.hs
+++ b/src/Text/DocTemplates/Internal.hs
@@ -37,7 +37,6 @@
 
 import Data.Text.Conversions (FromText(..), ToText(..))
 import Data.Aeson (Value(..), ToJSON(..), FromJSON(..), Result(..), fromJSON)
-import Data.YAML (ToYAML(..), FromYAML(..), Node(..), Scalar(..))
 import Control.Monad.Identity
 import qualified Control.Monad.State.Strict as S
 import Data.Char (chr, ord)
@@ -234,28 +233,6 @@
       MapVal o -> return o
       _        -> fail "Expecting MapVal"
 
-instance TemplateTarget a => FromYAML (Val a) where
-  parseYAML v =
-    case v of
-      Mapping _ _ m -> MapVal . Context . M.fromList <$>
-                           mapM (\(key, val) -> do
-                                  val' <- parseYAML val
-                                  key' <- parseYAML key
-                                  return (key', val')) (M.toList m)
-      Sequence _ _ xs -> ListVal <$> mapM parseYAML xs
-      Scalar _ (SStr t) -> return $ SimpleVal $ fromString . fromText $ t
-      Scalar _ (SFloat n) -> return $ SimpleVal $ fromString . show $ n
-      Scalar _ (SInt n) -> return $ SimpleVal $ fromString . show $ n
-      Scalar _ (SBool b) -> return $ BoolVal b
-      _           -> return NullVal
-
-instance TemplateTarget a => FromYAML (Context a) where
-  parseYAML v = do
-    val <- parseYAML v
-    case val of
-      MapVal o -> return o
-      _        -> fail "Expecting MapVal"
-
 instance TemplateTarget a => ToJSON (Context a) where
   toJSON (Context m) = toJSON m
 
@@ -265,16 +242,6 @@
   toJSON (ListVal xs) = toJSON xs
   toJSON (SimpleVal d) = toJSON $ toText $ DL.render Nothing d
   toJSON (BoolVal b) = toJSON b
-
-instance TemplateTarget a => ToYAML (Context a) where
-  toYAML (Context m) = toYAML m
-
-instance TemplateTarget a => ToYAML (Val a) where
-  toYAML NullVal = toYAML (Nothing :: Maybe Text)
-  toYAML (MapVal m) = toYAML m
-  toYAML (ListVal xs) = toYAML xs
-  toYAML (SimpleVal d) = toYAML $ toText $ DL.render Nothing d
-  toYAML (BoolVal b) = toYAML b
 
 mapDoc :: TemplateTarget a => (Doc a -> Doc a) -> Val a -> Val a
 mapDoc f val =
diff --git a/test/keyval.txt b/test/keyval.txt
deleted file mode 100644
--- a/test/keyval.txt
+++ /dev/null
@@ -1,1 +0,0 @@
-