diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c4015447..08552e5d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
     
     steps:
       - name: Checkout pull request branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -61,7 +61,7 @@ jobs:
 
     steps:
       - name: Checkout pull request branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/conda_build.yml b/.github/workflows/conda_build.yml
index d9936908..20b237fb 100644
--- a/.github/workflows/conda_build.yml
+++ b/.github/workflows/conda_build.yml
@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: Checkout pull request branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -112,7 +112,7 @@ jobs:
 
     steps:
       - name: Checkout pull request branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/merge.yml b/.github/workflows/merge.yml
index 389a1826..7dc4d938 100644
--- a/.github/workflows/merge.yml
+++ b/.github/workflows/merge.yml
@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout main
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           ref: main
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 306d2c63..ff1069dd 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -32,7 +32,7 @@ jobs:
     if: ${{ github.event.inputs.commit }} == "auto"
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           token: ${{ secrets.CI_TOKEN }}
           fetch-depth: 0
@@ -82,7 +82,7 @@ jobs:
           fi
 
       - name: Checkout HEAD
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           ref: ${{ steps.determine-commit.outputs.commit }}
 
diff --git a/.github/workflows/update-documentation.yml b/.github/workflows/update-documentation.yml
index 864c07ce..fdc3c5a4 100644
--- a/.github/workflows/update-documentation.yml
+++ b/.github/workflows/update-documentation.yml
@@ -13,7 +13,7 @@ jobs:
     
     steps:
       - name: Checkout pull request branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           token: ${{ secrets.CI_TOKEN }}
           fetch-depth: 0