diff --git a/build.sh b/build.sh
index 1c4c257..d540c39 100755
--- a/build.sh
+++ b/build.sh
@@ -103,15 +103,15 @@ detect_architecture() {
 
 	case "$raw_arch" in
 		x86_64)
-			claude_download_url='https://downloads.claude.ai/releases/win32/x64/1.2581.0/Claude-f103981571883c6ef0522635cf396089a3ae0e0f.exe'
-			claude_exe_sha256='ba0dc0557eedf67ad1526dc5f298c100f48fb8e1c99f05c2c4f95d3b673492b3'
+			claude_download_url='https://downloads.claude.ai/releases/win32/x64/1.2773.0/Claude-884b3735b1ce5042a0c286824c6f9bd2d341f7c8.exe'
+			claude_exe_sha256='a8a8d2c0afbb980bb8627083127a9ae040074f6cd17dd440938659fd49d7d895'
 			architecture='amd64'
 			claude_exe_filename='Claude-Setup-x64.exe'
 			echo 'Configured for amd64 (x86_64) build.'
 			;;
 		aarch64)
-			claude_download_url='https://downloads.claude.ai/releases/win32/arm64/1.2581.0/Claude-f103981571883c6ef0522635cf396089a3ae0e0f.exe'
-			claude_exe_sha256='0f98132722a85d112b47b3f0659b544331e456010e287aa97fd11650eedb6713'
+			claude_download_url='https://downloads.claude.ai/releases/win32/arm64/1.2773.0/Claude-884b3735b1ce5042a0c286824c6f9bd2d341f7c8.exe'
+			claude_exe_sha256='3459bdba3d8d540269b68a31dddb9f10d2714f1fd63bcc8cccaa5d14e359d7b4'
 			architecture='arm64'
 			claude_exe_filename='Claude-Setup-arm64.exe'
 			echo 'Configured for arm64 (aarch64) build.'
diff --git a/nix/claude-desktop.nix b/nix/claude-desktop.nix
index 04514d8..ec5f0b6 100644
--- a/nix/claude-desktop.nix
+++ b/nix/claude-desktop.nix
@@ -16,16 +16,16 @@
 }:
 let
   pname = "claude-desktop";
-  version = "1.2581.0";
+  version = "1.2773.0";
 
   srcs = {
     x86_64-linux = fetchurl {
-      url = "https://downloads.claude.ai/releases/win32/x64/1.2581.0/Claude-f103981571883c6ef0522635cf396089a3ae0e0f.exe";
-      hash = "sha256-ug3AVX7t9nrRUm3F8pjBAPSPuOHJnwXCxPldO2c0krM=";
+      url = "https://downloads.claude.ai/releases/win32/x64/1.2773.0/Claude-884b3735b1ce5042a0c286824c6f9bd2d341f7c8.exe";
+      hash = "sha256-qKjSwK+7mAu4YnCDEnqa4EAHT2zRfdRAk4ZZ/UnX2JU=";
     };
     aarch64-linux = fetchurl {
-      url = "https://downloads.claude.ai/releases/win32/arm64/1.2581.0/Claude-f103981571883c6ef0522635cf396089a3ae0e0f.exe";
-      hash = "sha256-D5gTJyKoXRErR7PwZZtUQzHkVgEOKHqpf9EWUO7bZxM=";
+      url = "https://downloads.claude.ai/releases/win32/arm64/1.2773.0/Claude-884b3735b1ce5042a0c286824c6f9bd2d341f7c8.exe";
+      hash = "sha256-NFm9uj2NVAJptoox3dufENJxTx/WO8yMzKpdFONZ17Q=";
     };
   };