diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 9738e6b8f..b4c454d0a 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -29,7 +29,7 @@ jobs:
           - "1.8"
           - "~1.9.0-0"
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/CINightly.yml b/.github/workflows/CINightly.yml
index 45a995b12..472b7011d 100644
--- a/.github/workflows/CINightly.yml
+++ b/.github/workflows/CINightly.yml
@@ -27,7 +27,7 @@ jobs:
         version:
           - 'nightly'  # merge even if tests fail
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/DocCleanUp.yml b/.github/workflows/DocCleanUp.yml
index 5bcc15682..ad40f5291 100644
--- a/.github/workflows/DocCleanUp.yml
+++ b/.github/workflows/DocCleanUp.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout gh-pages branch
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           ref: gh-pages
       - name: Delete preview and history + push changes
diff --git a/.github/workflows/Documentation.yml b/.github/workflows/Documentation.yml
index 2f5e45bc4..8df863d61 100644
--- a/.github/workflows/Documentation.yml
+++ b/.github/workflows/Documentation.yml
@@ -15,7 +15,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: julia-actions/setup-julia@v1
         with:
           version: "1.8"
diff --git a/.github/workflows/Downstream.yml b/.github/workflows/Downstream.yml
index 1e0051bce..024b2fdcf 100644
--- a/.github/workflows/Downstream.yml
+++ b/.github/workflows/Downstream.yml
@@ -29,14 +29,14 @@ jobs:
           - { user: SciML, repo: NeuralPDE.jl, group: All }
     if: contains(github.event.pull_request.labels.*.name, 'run downstream test')
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.julia-version }}
           arch: x64
       - uses: julia-actions/julia-buildpkg@v1
       - name: Clone Downstream
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: ${{ matrix.package.user }}/${{ matrix.package.repo }}
           path: downstream
diff --git a/.github/workflows/FormatCheck.yml b/.github/workflows/FormatCheck.yml
index 01cd00db8..44392f88b 100644
--- a/.github/workflows/FormatCheck.yml
+++ b/.github/workflows/FormatCheck.yml
@@ -21,7 +21,7 @@ jobs:
         with:
           version: ${{ matrix.julia-version }}
 
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v3
       - name: Install JuliaFormatter and format
         # This will use the latest version by default but you can set the version like so:
         #
diff --git a/.github/workflows/FormatPR.yml b/.github/workflows/FormatPR.yml
index 5abd9a4df..66471c26c 100644
--- a/.github/workflows/FormatPR.yml
+++ b/.github/workflows/FormatPR.yml
@@ -6,7 +6,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Install JuliaFormatter and format
         run: |
           julia  -e 'using Pkg; Pkg.add(PackageSpec(name="JuliaFormatter"))'