diff --git a/.github/workflows/build-windows.yml b/.github/workflows/build-windows.yml
index 6928f2a..bf28e65 100644
--- a/.github/workflows/build-windows.yml
+++ b/.github/workflows/build-windows.yml
@@ -60,9 +60,9 @@ jobs:
     - name: Compress with upx
       shell: pwsh
       run: |
-        Invoke-WebRequest -OutFile upx.zip https://github.com/user-attachments/files/15894908/upx-4.2.4-win64.zip
+        Invoke-WebRequest -OutFile upx.zip https://github.com/upx/upx/releases/download/v5.0.2/upx-5.0.2-win64.zip
         Expand-Archive -DestinationPath upx upx.zip
-        upx/upx-4.2.4-win64/upx.exe --lzma -o src/Picocrypt.exe src/5.exe
+        upx/upx-5.0.2-win64/upx.exe --lzma -o src/Picocrypt.exe src/5.exe
 
     - name: Upload artifact
       uses: actions/upload-artifact@v4
diff --git a/.github/workflows/pr-test-build-windows.yml b/.github/workflows/pr-test-build-windows.yml
index 6ce862e..e1fb58c 100644
--- a/.github/workflows/pr-test-build-windows.yml
+++ b/.github/workflows/pr-test-build-windows.yml
@@ -57,9 +57,9 @@ jobs:
     - name: Compress with upx
       shell: pwsh
       run: |
-        Invoke-WebRequest -OutFile upx.zip https://github.com/user-attachments/files/15894908/upx-4.2.4-win64.zip
+        Invoke-WebRequest -OutFile upx.zip https://github.com/upx/upx/releases/download/v5.0.2/upx-5.0.2-win64.zip
         Expand-Archive -DestinationPath upx upx.zip
-        upx/upx-4.2.4-win64/upx.exe --lzma -o src/Picocrypt.exe src/5.exe
+        upx/upx-5.0.2-win64/upx.exe --lzma -o src/Picocrypt.exe src/5.exe
 
     - name: Upload artifact
       uses: actions/upload-artifact@v4