diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 3be9734..a10f917 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -21,7 +21,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
     - name: Check out code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
     
     - name: Install and set up R
       uses: r-lib/actions/setup-r@v2
@@ -55,7 +55,7 @@ jobs:
     # Upload the check directory as an artefact on failure
     - name: Upload check results
       if: failure()
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v6
       with:
         name: ${{ matrix.os }}-results
         path: Rcheck
diff --git a/.gitignore b/.gitignore
index a2333e9..394bd96 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /src/*.so
 /compile_commands.json
 /.cache
+.DS_Store
diff --git a/README.md b/README.md
index b366410..b068c29 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[![CRAN version](http://www.r-pkg.org/badges/version/RcppArray)](https://cran.r-project.org/package=RcppArray) [![CI](https://github.com/jonclayden/RcppArray/actions/workflows/ci.yaml/badge.svg)](https://github.com/jonclayden/RcppArray/actions/workflows/ci.yaml) [![Dependencies](https://tinyverse.netlify.com/badge/RcppArray)](https://tinyverse.netlify.app)
+[![CRAN version](https://www.r-pkg.org/badges/version/RcppArray)](https://cran.r-project.org/package=RcppArray) [![CI](https://github.com/jonclayden/RcppArray/actions/workflows/ci.yaml/badge.svg)](https://github.com/jonclayden/RcppArray/actions/workflows/ci.yaml) [![Dependencies](https://tinyverse.netlify.app/badge/RcppArray)](https://tinyverse.netlify.app)
 
 
 # `Rcpp` interoperability with `std::array` (et al.)