diff --git a/pkgs/applications/science/logic/coq/default.nix b/pkgs/applications/science/logic/coq/default.nix
index f0f62bfb353..721cd4ffa08 100644
--- a/pkgs/applications/science/logic/coq/default.nix
+++ b/pkgs/applications/science/logic/coq/default.nix
@@ -3,7 +3,7 @@
 {stdenv, fetchurl, pkgconfig, writeText, ocaml, findlib, camlp5, ncurses, lablgtk ? null}:
 
 let
-  version = "8.4pl4";
+  version = "8.4pl5";
   coq-version = "8.4";
   buildIde = lablgtk != null;
   ideFlags = if buildIde then "-lablgtkdir ${lablgtk}/lib/ocaml/*/site-lib/lablgtk2 -coqide opt" else "";
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
 
   src = fetchurl {
     url = "http://coq.inria.fr/distrib/V${version}/files/coq-${version}.tar.gz";
-    sha256 = "00bzf4kfbd0g279jrr8ynzvb9wqcly3wi577bkrxivhrg2msxhq6";
+    sha256 = "0iajsabyrgypk1ncm0kqcxqv02k24xa1bayaxacjgmsqiavmm09m";
   };
 
   buildInputs = [ pkgconfig ocaml findlib camlp5 ncurses lablgtk ];