diff --git a/.github/workflows/viewer-build.yml b/.github/workflows/viewer-build.yml
index 9266f758..78babb4a 100644
--- a/.github/workflows/viewer-build.yml
+++ b/.github/workflows/viewer-build.yml
@@ -34,7 +34,7 @@ jobs:
 
     - if: ${{ matrix.os == 'windows-latest' }}
       run: |
-        choco install wget
+        choco install wget zip
 
     - if: ${{ matrix.os == 'ubuntu-latest' }}
       run: |