diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index cdf3bea..9dd56a0 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -18,7 +18,7 @@ jobs:
   library:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: julia-actions/setup-julia@v2
         with: { version: '1' }
       - uses: julia-actions/cache@v3
@@ -28,7 +28,7 @@ jobs:
   project:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: julia-actions/setup-julia@v2
         with: { version: '1' }
       - uses: julia-actions/cache@v3
@@ -48,7 +48,7 @@ jobs:
     # exactly the kind of edit that works until one path is missed.
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: julia-actions/setup-julia@v2
         with: { version: '1' }
       - uses: julia-actions/cache@v3