diff --git a/pkgs/development/libraries/armadillo/default.nix b/pkgs/development/libraries/armadillo/default.nix
index d3bee03c5e1..bd147fffc99 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 = "11.4.3";
+  version = "12.0.1";
 
   src = fetchurl {
     url = "mirror://sourceforge/arma/armadillo-${version}.tar.xz";
-    sha256 = "sha256-h2AyY2ZJiK9B2iyk82IF426kepKB+mz9RjEV83l6HaI=";
+    sha256 = "sha256-IwpcddqtUtxH4a3Oj1pQ+apOQ1Tg8bsY6oTvoucOIN8=";
   };
 
   nativeBuildInputs = [ cmake ];