diff --git a/.github/workflows/contributors.yml b/.github/workflows/contributors.yml
new file mode 100644
index 0000000..c2c1ac4
--- /dev/null
+++ b/.github/workflows/contributors.yml
@@ -0,0 +1,23 @@
+name: Add contributors
+on:
+  schedule:
+    - cron:  '20 20 * * *'
+# push:
+#   branches:
+#     - master
+
+jobs:
+  add-contributors:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: BobAnkh/add-contributors@master
+      with:
+        CONTRIBUTOR: '### Contributors'
+        COLUMN_PER_ROW: '3'
+        ACCESS_TOKEN: ${{secrets.GITHUB_TOKEN}}
+        IMG_WIDTH: '100'
+        FONT_SIZE: '14'
+        PATH: '/README.md'
+        COMMIT_MESSAGE: 'docs(README): update contributors'
+        AVATAR_SHAPE: 'round'
\ No newline at end of file
diff --git a/.github/workflows/r.yml b/.github/workflows/r.yml
index ed8aacf..44b85e8 100644
--- a/.github/workflows/r.yml
+++ b/.github/workflows/r.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: macos-latest
     strategy:
       matrix:
-        r-version: ['3.6.3', '4.1.1']
+        r-version: ['4.4.1']
 
     steps:
       - uses: actions/checkout@v4