diff --git a/headed-megaparsec.cabal b/headed-megaparsec.cabal
--- a/headed-megaparsec.cabal
+++ b/headed-megaparsec.cabal
@@ -1,5 +1,5 @@
 name: headed-megaparsec
-version: 0.2
+version: 0.2.0.1
 category: Parsers, Parsing, Megaparsec
 synopsis: More informative parser
 homepage: https://github.com/nikita-volkov/headed-megaparsec
@@ -26,8 +26,8 @@
     HeadedMegaparsec.Megaparsec
     HeadedMegaparsec.Prelude
   build-depends:
-    base >=4.9 && <5,
+    base >=4.12 && <5,
     case-insensitive >=1.2 && <2,
     megaparsec >=9 && <10,
-    parser-combinators >=1.1 && <1.3,
+    parser-combinators >=1.1 && <1.4,
     selective >=0.4 && <0.5
diff --git a/library/HeadedMegaparsec.hs b/library/HeadedMegaparsec.hs
--- a/library/HeadedMegaparsec.hs
+++ b/library/HeadedMegaparsec.hs
@@ -43,6 +43,9 @@
 
 ==__Examples__
 
+>>> import Prelude
+>>> import Control.Applicative
+>>> import Data.Void
 >>> import qualified Text.Megaparsec as M
 >>> import qualified Text.Megaparsec.Char as M
 >>> import qualified Text.Megaparsec.Char.Lexer as ML
@@ -63,7 +66,7 @@
         decimal = parse ML.decimal
         string' = parse . M.string'
         -- Syntax parsers:
-        targets = sepBy1 target commaSeparator
+        targets = M.sepBy1 target commaSeparator
         target = Left <$> char '*' <|> Right <$> decimal
         commaSeparator = space *> char ',' *> endHead *> space
         limit = string' "limit" *> endHead *> space1 *> decimal