diff --git a/.github/workflows/testing.yaml b/.github/workflows/testing.yaml
index 1b20e22..652ce33 100644
--- a/.github/workflows/testing.yaml
+++ b/.github/workflows/testing.yaml
@@ -12,7 +12,7 @@ on: [push]  # yamllint disable-line rule:truthy
 
 jobs:
   testing-mac-10-15:
-    runs-on: macos-10.15
+    runs-on: macos-11
     steps:
       # This step is necessary because one of our dependencies
       # conflicts with the Github image .
@@ -22,7 +22,7 @@ jobs:
           brew install go || true
           brew link --overwrite go || true
       - name: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: tests
         shell: bash
         run: |
diff --git a/.github/workflows/yetus.yml b/.github/workflows/yetus.yml
index 0f32d75..3a85fa8 100644
--- a/.github/workflows/yetus.yml
+++ b/.github/workflows/yetus.yml
@@ -25,7 +25,7 @@ jobs:
 
     steps:
       - name: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: src
           fetch-depth: 0