diff --git a/.github/workflows/vendor_build.yml b/.github/workflows/vendor_build.yml
index 4877c29a4de..cf92d86cd2f 100644
--- a/.github/workflows/vendor_build.yml
+++ b/.github/workflows/vendor_build.yml
@@ -36,6 +36,7 @@ jobs:
           CXX: ${{matrix.compiler.cxx}}
         run: >
           cmake -S . -B build -G Ninja
+          -DCMAKE_CXX_STANDARD=11
           -DCMAKE_BUILD_TYPE=${{matrix.build_type}}
           -DVW_FEAT_FLATBUFFERS=Off
           -DVW_FEAT_CSV=On
@@ -75,6 +76,7 @@ jobs:
       - name: Configure
         run: >
           cmake -S "${{ env.SOURCE_DIR }}" -B "${{ env.CMAKE_BUILD_DIR }}" -A "x64"
+          -DCMAKE_CXX_STANDARD=11
           -DUSE_LATEST_STD=On
           -DVW_FEAT_FLATBUFFERS=Off
           -DVW_FEAT_CSV=On
@@ -108,6 +110,7 @@ jobs:
       - name: Configure
         run: >
           cmake -S . -B build -G Ninja
+          -DCMAKE_CXX_STANDARD=11
           -DCMAKE_BUILD_TYPE=${{matrix.build_type}}
           -DVW_FEAT_FLATBUFFERS=Off
           -DVW_FEAT_CSV=On