diff --git a/pkgs/development/libraries/science/math/arpack/default.nix b/pkgs/development/libraries/science/math/arpack/default.nix
index 55c1a641fc3..2a6c4af43fc 100644
--- a/pkgs/development/libraries/science/math/arpack/default.nix
+++ b/pkgs/development/libraries/science/math/arpack/default.nix
@@ -4,14 +4,14 @@
 with stdenv.lib;
 
 let
-  version = "3.5.0";
+  version = "3.6.3";
 in
 stdenv.mkDerivation {
   name = "arpack-${version}";
 
   src = fetchurl {
     url = "https://github.com/opencollab/arpack-ng/archive/${version}.tar.gz";
-    sha256 = "0f8jx3fifmj9qdp289zr7r651y1q48k1jya859rqxq62mvis7xsh";
+    sha256 = "0lzlcsrjsi36pv5bnipwjnyg2fx3nrv31bw2klwrg11gb8g5bwv4";
   };
 
   nativeBuildInputs = [ autoconf automake gettext libtool ];