diff --git a/pkgs/applications/science/logic/why3/default.nix b/pkgs/applications/science/logic/why3/default.nix
index 54c8caa99d86..202d52f0cc0e 100644
--- a/pkgs/applications/science/logic/why3/default.nix
+++ b/pkgs/applications/science/logic/why3/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name    = "why3-${version}";
-  version = "0.88.1";
+  version = "0.88.3";
 
   src = fetchurl {
-    url    = https://gforge.inria.fr/frs/download.php/file/37185/why3-0.88.1.tar.gz;
-    sha256 = "1qj00963si0vdrqjp79ai27g9rr8sqvly6n6nwpga6bnss98xqkw";
+    url    = https://gforge.inria.fr/frs/download.php/file/37313/why3-0.88.3.tar.gz;
+    sha256 = "0limdqy9l5bjzwhdalcfdyh0b6laxgiphhvr4bby9p0030agssiy";
   };
 
   buildInputs = (with ocamlPackages; [