diff --git a/pkgs/applications/science/logic/why3/default.nix b/pkgs/applications/science/logic/why3/default.nix
index b9bd2172bb1c45..eacff32bdf62ef 100644
--- a/pkgs/applications/science/logic/why3/default.nix
+++ b/pkgs/applications/science/logic/why3/default.nix
@@ -3,11 +3,11 @@
 
 stdenv.mkDerivation {
   pname = "why3";
-  version = "1.3.1";
+  version = "1.3.3";
 
   src = fetchurl {
-    url = "https://gforge.inria.fr/frs/download.php/file/38291/why3-1.3.1.tar.gz";
-    sha256 = "16zcrc60zz2j3gd3ww93z2z9x2jkxb3kr57y8i5rcgmacy7mw3bv";
+    url = "https://gforge.inria.fr/frs/download.php/file/38367/why3-1.3.3.tar.gz";
+    sha256 = "1n0a2nn1gnk0zg339lh698g4wpk7m8m1vyi2yvifd5adqvk4milw";
   };
 
   buildInputs = with ocamlPackages; [