diff --git a/pkgs/by-name/ar/armadillo/package.nix b/pkgs/by-name/ar/armadillo/package.nix
index e028b918071f..41e52c944351 100644
--- a/pkgs/by-name/ar/armadillo/package.nix
+++ b/pkgs/by-name/ar/armadillo/package.nix
@@ -11,11 +11,11 @@
 
 stdenv.mkDerivation rec {
   pname = "armadillo";
-  version = "14.4.3";
+  version = "14.6.1";
 
   src = fetchurl {
     url = "mirror://sourceforge/arma/armadillo-${version}.tar.xz";
-    hash = "sha256-w6rdWb2w6kM5sFbymXL5LuGf3FL2jreNMtLkyvTYDDo=";
+    hash = "sha256-vsZ/No/GFnPEyelCnSATWkK6gKLH+FkrkS5fl+KJv8A=";
   };
 
   nativeBuildInputs = [ cmake ];