diff --git a/.github/workflows/windows-build.yaml b/.github/workflows/windows-build.yaml
index 150f853e..8df2e504 100644
--- a/.github/workflows/windows-build.yaml
+++ b/.github/workflows/windows-build.yaml
@@ -26,7 +26,6 @@ jobs:
     # In particular, this build uses:
     # cmake: 3.27.9
     # VSCode: 2022 Enterprise Edition (corresponding C++ version: https://blog.knatten.org/2022/08/26/microsoft-c-versions-explained/)
-    # Ruby: 3.0.6p216
     # boost: 1.82.0
     runs-on: windows-2022
     env:
@@ -43,17 +42,12 @@ jobs:
       with:
         persist-credentials: false
 
-    - name: install ruby tools
-      run: |
-        gem install bundler
-        bundle install
-
     # - name: Install Google Test
     #   uses: MarkusJx/googletest-installer@v1.1
 
     - name: Restore cached boost dependencies
       id: cache-boost-deps
-      uses: actions/cache@6f8efc29b200d32929f49075959781ed54ec270c #v3.5.0
+      uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 #v6.1.0
       with:
         path: |
           boost_1_82_0