diff --git a/pkgs/development/libraries/armadillo/default.nix b/pkgs/development/libraries/armadillo/default.nix
index 5af49f23c44f..95e89f660cca 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 = "11.4.1";
+  version = "11.4.2";
 
   src = fetchurl {
     url = "mirror://sourceforge/arma/armadillo-${version}.tar.xz";
-    sha256 = "sha256-2ttf01vE3CUbNvXdgHKcPFiNZeLsvNTk41mtnLBFI/s=";
+    sha256 = "sha256-5oYBNPGsllbGoczHTHS3X4xZZqyGEoQfL78Mkc459Ok=";
   };
 
   nativeBuildInputs = [ cmake ];