diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6959734..ce7a10e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
     name: Workflow Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Run actionlint
         uses: docker://rhysd/actionlint:1.7.7
         with:
@@ -33,7 +33,7 @@ jobs:
     name: Format
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9 # stable
         with:
           toolchain: stable
@@ -44,7 +44,7 @@ jobs:
     name: Clippy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9 # stable
         with:
           toolchain: stable
@@ -68,7 +68,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9 # stable
         with:
           toolchain: stable
@@ -87,7 +87,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [fmt, clippy]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9 # stable
         with:
           toolchain: stable
@@ -112,7 +112,7 @@ jobs:
     name: Security Audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9 # stable
         with:
           toolchain: stable
diff --git a/.github/workflows/jira-cloud-smoke.yml b/.github/workflows/jira-cloud-smoke.yml
index f6cd3c4..22f76d8 100644
--- a/.github/workflows/jira-cloud-smoke.yml
+++ b/.github/workflows/jira-cloud-smoke.yml
@@ -26,7 +26,7 @@ jobs:
     name: Jira Cloud Sandbox Smoke
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9 # stable
         with:
           toolchain: stable
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 00f62e1..2646bc1 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -35,7 +35,7 @@ jobs:
             echo "::error::Release workflow requires a semver tag; got ${RELEASE_TAG}."
             exit 1
           fi
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           ref: ${{ env.RELEASE_TAG }}
           fetch-depth: 0
@@ -83,7 +83,7 @@ jobs:
       run:
         shell: bash
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           ref: ${{ env.RELEASE_TAG }}
       - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9 # stable
@@ -138,7 +138,7 @@ jobs:
     needs: build-assets
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           ref: ${{ env.RELEASE_TAG }}
       - uses: actions/download-artifact@v4