diff --git a/.expeditor/config.yml b/.expeditor/config.yml
index e00a581c6..c9e664f6f 100644
--- a/.expeditor/config.yml
+++ b/.expeditor/config.yml
@@ -23,6 +23,7 @@ pipelines:
      # The git cache is corrupt more often than not. This always purges the cache.
      # https://chefio.atlassian.net/wiki/spaces/RELENGKB/pages/2204336129/Resolving+git+cache+build+errors+in+Omnibus
      - EXPIRE_CACHE: 1
+     - IGNORE_ARTIFACTORY_RUBY_PROXY: true # Artifactory is throwing 500's when downloading some gems like ffi.
  - omnibus/adhoc:
     definition: .expeditor/release.omnibus.yml
     env:
diff --git a/.expeditor/release.omnibus.yml b/.expeditor/release.omnibus.yml
index 5bb358d69..0aeda7e02 100644
--- a/.expeditor/release.omnibus.yml
+++ b/.expeditor/release.omnibus.yml
@@ -7,6 +7,7 @@ fips-platforms:
   - el-*-x86_64
   - windows-*
   - ubuntu-*-x86_64
+windows-64-msystem: UCRT64
 builder-to-testers-map:
   debian-9-x86_64:
     - debian-9-x86_64