diff --git a/pkgs/development/libraries/vulkan-headers/default.nix b/pkgs/development/libraries/vulkan-headers/default.nix
index 68373413b30f..91bd1a634630 100644
--- a/pkgs/development/libraries/vulkan-headers/default.nix
+++ b/pkgs/development/libraries/vulkan-headers/default.nix
@@ -1,15 +1,15 @@
 { lib, stdenv, fetchFromGitHub, cmake }:
 stdenv.mkDerivation rec {
   pname = "vulkan-headers";
-  version = "1.3.243.0";
+  version = "1.3.249";
 
   nativeBuildInputs = [ cmake ];
 
   src = fetchFromGitHub {
     owner = "KhronosGroup";
     repo = "Vulkan-Headers";
-    rev = "sdk-${version}";
-    hash = "sha256-iitEA/x9QpbQrYTcV0OzBgnY6bQFhIm+mVq1ryIQ3+0=";
+    rev = "v${version}";
+    hash = "sha256-PLqF9lO7vWvgRZvXLmOcNhTgkB+3TXUa0eoALwDc5Ws=";
   };
 
   passthru.updateScript = ./update.sh;
diff --git a/pkgs/development/libraries/vulkan-loader/default.nix b/pkgs/development/libraries/vulkan-loader/default.nix
index 7cad0a38779e..d6af2ceabb28 100644
--- a/pkgs/development/libraries/vulkan-loader/default.nix
+++ b/pkgs/development/libraries/vulkan-loader/default.nix
@@ -3,13 +3,13 @@
 
 stdenv.mkDerivation rec {
   pname = "vulkan-loader";
-  version = "1.3.243.0";
+  version = "1.3.249";
 
   src = fetchFromGitHub {
     owner = "KhronosGroup";
     repo = "Vulkan-Loader";
-    rev = "sdk-${version}";
-    hash = "sha256-DqgIg0jZxzhoyYrATDQMoNN/Pav9deKdltB7L0XDqPE=";
+    rev = "v${version}";
+    hash = "sha256-v4GEZEcQP3+oiT66sgysIZ2PdLSidyYjecb3TmcHG2Y=";
   };
 
   patches = [ ./fix-pkgconfig.patch ];