diff --git a/pkgs/applications/science/math/pari/default.nix b/pkgs/applications/science/math/pari/default.nix
index a9c002d210f2..66d8028c2aca 100644
--- a/pkgs/applications/science/math/pari/default.nix
+++ b/pkgs/applications/science/math/pari/default.nix
@@ -13,7 +13,7 @@ assert withThread -> libpthreadstubs != null;
 
 stdenv.mkDerivation rec {
   pname = "pari";
-  version = "2.13.3";
+  version = "2.13.4";
 
   src = fetchurl {
     urls = [
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
       # old versions are at the url below
       "https://pari.math.u-bordeaux.fr/pub/pari/OLD/${lib.versions.majorMinor version}/${pname}-${version}.tar.gz"
     ];
-    hash = "sha256-zLp/FgbGhU8UQ2N7tXrQlY1Bx/R1P4roRZ8dZMJnoco=";
+    hash = "sha256-vN6ezq4VkoFDgcFpfNtwY1Z7ZQQgGxvke7WJIPO84YU=";
   };
 
   buildInputs = [
@@ -82,5 +82,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ ertes AndersonTorres ] ++ teams.sage.members;
     platforms = platforms.linux ++ platforms.darwin;
+    mainProgram = "gp";
   };
 }