diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index 7c1c4af8f2..aebe223193 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -2944,7 +2944,7 @@ (define-public ghc-parsers
 (define-public ghc-trifecta
   (package
     (name "ghc-trifecta")
-    (version "1.7.1.1")
+    (version "2")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2952,11 +2952,10 @@ (define-public ghc-trifecta
                     "trifecta-" version ".tar.gz"))
               (sha256
                (base32
-                "13n6a3fdxngnzsjnhfrzigv1c2g0xm6lqkjcnirpc37sd0rpby31"))))
+                "0hznd8i65s81xy13i2qc7cvipw3lfb2yhkv53apbdsh6sbljz5sk"))))
     (build-system haskell-build-system)
     (inputs
-     `(("ghc-doctest" ,ghc-doctest-0.13)
-       ("ghc-reducers" ,ghc-reducers)
+     `(("ghc-reducers" ,ghc-reducers)
        ("ghc-semigroups" ,ghc-semigroups)
        ("ghc-ansi-wl-pprint" ,ghc-ansi-wl-pprint)
        ("ghc-ansi-terminal" ,ghc-ansi-terminal)
@@ -2965,17 +2964,17 @@ (define-public ghc-trifecta
        ("ghc-blaze-markup" ,ghc-blaze-markup)
        ("ghc-charset" ,ghc-charset)
        ("ghc-comonad" ,ghc-comonad)
-       ("ghc-doctest" ,ghc-doctest)
        ("ghc-fingertree" ,ghc-fingertree)
        ("ghc-hashable" ,ghc-hashable)
        ("ghc-lens" ,ghc-lens)
        ("ghc-parsers" ,ghc-parsers)
        ("ghc-profunctors" ,ghc-profunctors)
-       ("ghc-quickcheck" ,ghc-quickcheck)
        ("ghc-unordered-containers" ,ghc-unordered-containers)
        ("ghc-utf8-string" ,ghc-utf8-string)))
     (native-inputs
-     `(("cabal-doctest" ,cabal-doctest)))
+     `(("cabal-doctest" ,cabal-doctest)
+       ("ghc-doctest" ,ghc-doctest)
+       ("ghc-quickcheck" ,ghc-quickcheck)))
     (home-page "https://github.com/ekmett/trifecta/")
     (synopsis "Parser combinator library with convenient diagnostics")
     (description "Trifecta is a modern parser combinator library for Haskell,