diff --git a/.changes/unreleased/Dependencies-20250818-011957.yaml b/.changes/unreleased/Dependencies-20250818-011957.yaml
new file mode 100644
index 00000000000..111549b5557
--- /dev/null
+++ b/.changes/unreleased/Dependencies-20250818-011957.yaml
@@ -0,0 +1,6 @@
+kind: "Dependencies"
+body: "Bump actions/checkout from 4 to 5"
+time: 2025-08-18T01:19:57.00000Z
+custom:
+  Author: dependabot[bot]
+  Issue: 11925
diff --git a/.github/workflows/check-artifact-changes.yml b/.github/workflows/check-artifact-changes.yml
index 3af16df9ef7..87265092bc5 100644
--- a/.github/workflows/check-artifact-changes.yml
+++ b/.github/workflows/check-artifact-changes.yml
@@ -17,7 +17,7 @@ jobs:
     if: ${{ !contains(github.event.pull_request.labels.*.name, 'artifact_minor_upgrade') }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 71e8323655c..3dca579e024 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -49,7 +49,7 @@ jobs:
 
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python
         uses: actions/setup-python@v5
@@ -84,7 +84,7 @@ jobs:
 
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
@@ -199,7 +199,7 @@ jobs:
 
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
@@ -277,7 +277,7 @@ jobs:
 
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
@@ -357,7 +357,7 @@ jobs:
 
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python
         uses: actions/setup-python@v5
diff --git a/.github/workflows/model_performance.yml b/.github/workflows/model_performance.yml
index 125286066ce..6f3cc56cf87 100644
--- a/.github/workflows/model_performance.yml
+++ b/.github/workflows/model_performance.yml
@@ -48,7 +48,7 @@ jobs:
       # explicitly checkout the performance runner from main regardless of which
       # version we are modeling.
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: main
 
@@ -87,7 +87,7 @@ jobs:
       # explicitly checkout the performance runner from main regardless of which
       # version we are modeling.
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: main
 
@@ -160,7 +160,7 @@ jobs:
 
       # explicitly checkout main to get the latest project definitions
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: main
 
@@ -225,7 +225,7 @@ jobs:
           echo "release_branch: ${{ needs.set-variables.outputs.release_branch }}"
 
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ matrix.base-branch }}
 
diff --git a/.github/workflows/nightly-release.yml b/.github/workflows/nightly-release.yml
index 7f70508895b..1b62a73e3ed 100644
--- a/.github/workflows/nightly-release.yml
+++ b/.github/workflows/nightly-release.yml
@@ -39,7 +39,7 @@ jobs:
 
     steps:
       - name: "Checkout ${{ github.repository }} Branch ${{ env.RELEASE_BRANCH }}"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ env.RELEASE_BRANCH }}
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ca66b701c43..30fe9c4574a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -89,7 +89,7 @@ jobs:
           echo Only Docker:                        ${{ inputs.only_docker }}
 
       - name: "Checkout target branch"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ inputs.target_branch }}
 
diff --git a/.github/workflows/schema-check.yml b/.github/workflows/schema-check.yml
index 713f6edcd51..94bb85b8995 100644
--- a/.github/workflows/schema-check.yml
+++ b/.github/workflows/schema-check.yml
@@ -46,7 +46,7 @@ jobs:
           python-version: 3.9
 
       - name: Checkout dbt repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
             path: ${{ env.DBT_REPO_DIRECTORY }}
             ref: ${{ inputs.target_branch }}
@@ -69,7 +69,7 @@ jobs:
 
       - name: Checkout schemas.getdbt.com repo
         if: steps.check_artifact_changes.outputs.artifacts_changed == 'true'
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: dbt-labs/schemas.getdbt.com
           ref: 'main'
diff --git a/.github/workflows/structured-logging-schema-check.yml b/.github/workflows/structured-logging-schema-check.yml
index 8c37949d1f2..0ad49e91f6f 100644
--- a/.github/workflows/structured-logging-schema-check.yml
+++ b/.github/workflows/structured-logging-schema-check.yml
@@ -89,7 +89,7 @@ jobs:
 
     steps:
       - name: checkout dev
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/test-repeater.yml b/.github/workflows/test-repeater.yml
index 3be3b3c757f..df6b4ab6ce2 100644
--- a/.github/workflows/test-repeater.yml
+++ b/.github/workflows/test-repeater.yml
@@ -82,7 +82,7 @@ jobs:
 
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ inputs.branch }}