diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index bc5bc889..e0f62c0b 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -32,7 +32,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
@@ -54,7 +54,7 @@ jobs:
       contents: write
       statuses: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: "1"
diff --git a/.github/workflows/Integration.yml b/.github/workflows/Integration.yml
index 9e965ce9..f38ca9cd 100644
--- a/.github/workflows/Integration.yml
+++ b/.github/workflows/Integration.yml
@@ -35,14 +35,14 @@ jobs:
         - {user: PalmStudio, repo: XPalm.jl, branch: dev}
         - {user: VEZY, repo: PlantBioPhysics.jl, branch: dev}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
       - uses: julia-actions/julia-buildpkg@v1
       - name: Clone Downstream
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: ${{ matrix.package.user }}/${{ matrix.package.repo }}
           ref: ${{matrix.package.branch}}
diff --git a/.github/workflows/benchmarks_and_downstream.yml b/.github/workflows/benchmarks_and_downstream.yml
index be23e19c..c758e52a 100644
--- a/.github/workflows/benchmarks_and_downstream.yml
+++ b/.github/workflows/benchmarks_and_downstream.yml
@@ -32,7 +32,7 @@ jobs:
        # the group setting is unused atm
         - {user: VEZY, repo: PlantSimEngine.jl, group: Downstream}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}