diff --git a/.github/workflows/format_check.yml b/.github/workflows/format_check.yml
index c48c91c..9c36773 100644
--- a/.github/workflows/format_check.yml
+++ b/.github/workflows/format_check.yml
@@ -10,7 +10,7 @@ jobs:
     name: "Format Check"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: 1
diff --git a/.github/workflows/format_pr.yml b/.github/workflows/format_pr.yml
index b7a9268..eaabf71 100644
--- a/.github/workflows/format_pr.yml
+++ b/.github/workflows/format_pr.yml
@@ -6,7 +6,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Install JuliaFormatter and format
         run: |
           julia  -e 'import Pkg; Pkg.add("JuliaFormatter")'
diff --git a/.github/workflows/format_suggestions.yml b/.github/workflows/format_suggestions.yml
index f6f268c..f80377a 100644
--- a/.github/workflows/format_suggestions.yml
+++ b/.github/workflows/format_suggestions.yml
@@ -13,7 +13,7 @@ jobs:
   format:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@latest
         with:
           version: 1