diff --git a/pkgs/development/libraries/armadillo/default.nix b/pkgs/development/libraries/armadillo/default.nix
index c6568913664..10649092d20 100644
--- a/pkgs/development/libraries/armadillo/default.nix
+++ b/pkgs/development/libraries/armadillo/default.nix
@@ -1,12 +1,12 @@
 { stdenv, fetchurl, cmake, openblasCompat, superlu, hdf5 }:
 
 stdenv.mkDerivation rec {
-  version = "9.400.4";
+  version = "9.500.2";
   name = "armadillo-${version}";
 
   src = fetchurl {
     url = "mirror://sourceforge/arma/armadillo-${version}.tar.xz";
-    sha256 = "1wv08i8mq16hswxkll3kmbfih4hz4d8v7apszm76lwxpya2bm65l";
+    sha256 = "17npgyavzrbf4d3m28f9j7j8hk2pc91ai9nkkp39hkdflq3kw6hb";
   };
 
   nativeBuildInputs = [ cmake ];