diff --git a/pkgs/development/libraries/armadillo/default.nix b/pkgs/development/libraries/armadillo/default.nix
index bd147fffc99..9eeb138f634 100644
--- a/pkgs/development/libraries/armadillo/default.nix
+++ b/pkgs/development/libraries/armadillo/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "armadillo";
-  version = "12.0.1";
+  version = "12.2.0";
 
   src = fetchurl {
     url = "mirror://sourceforge/arma/armadillo-${version}.tar.xz";
-    sha256 = "sha256-IwpcddqtUtxH4a3Oj1pQ+apOQ1Tg8bsY6oTvoucOIN8=";
+    sha256 = "sha256-sNzgQil+hlrdM1Ha1394wsdjjWYy9YNXsBXlDty9IYY=";
   };
 
   nativeBuildInputs = [ cmake ];