diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index c87588f..88f33e7 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         ref : gh-pages
 
diff --git a/.github/workflows/documentation_lint.yml b/.github/workflows/documentation_lint.yml
index 64a8caf..e5bd1d1 100644
--- a/.github/workflows/documentation_lint.yml
+++ b/.github/workflows/documentation_lint.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Python 3.9
       uses: actions/setup-python@v4
diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index b6e2e72..8b3efc1 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 43aaea6..bcab148 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -17,7 +17,7 @@ jobs:
         python-version: ["3.7","3.8", "3.9","3.10"]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
diff --git a/.github/workflows/update_readme_forecast.yml b/.github/workflows/update_readme_forecast.yml
index ec1512f..e5ba04c 100644
--- a/.github/workflows/update_readme_forecast.yml
+++ b/.github/workflows/update_readme_forecast.yml
@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - name: Checkout gh branch
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref : gh-pages