diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 50ace260b7..f515da97fc 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -28,7 +28,7 @@ env:
   RUN_EXTENDED_TESTS: ${{ inputs.target_branch == 'release/8.8.x' }}
   REF: ${{ inputs.target_branch =='' && github.ref || inputs.target_branch}}
   VCPKG_ROOT: ${{ github.workspace }}/vcpkg
-  vcpkgPackages:
+  vcpkgPackages: yaml-cpp antlr4
   triplet: x64-linux
   WX_CONFIG: /usr/bin/wx-config
 
diff --git a/.github/workflows/windows-vcpkg.yml b/.github/workflows/windows-vcpkg.yml
index bf598ebee7..5f5cfa53c4 100644
--- a/.github/workflows/windows-vcpkg.yml
+++ b/.github/workflows/windows-vcpkg.yml
@@ -38,7 +38,7 @@ jobs:
       ORTOOLS_DIR: ${{ github.workspace }}/or-tools
       os: windows-latest
       test-platform: windows-2022
-      vcpkgPackages: wxwidgets boost-test
+      vcpkgPackages: wxwidgets boost-test yaml-cpp antlr4
       triplet: x64-windows
 
     runs-on: windows-latest