diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c286291..0935b27 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
     name: lint (rustfmt, clippy, deny)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Install Rust toolchain (pinned by rust-toolchain.toml)
         run: rustup show
@@ -43,7 +43,7 @@ jobs:
     name: test (rust)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Install Rust toolchain
         run: rustup show
@@ -61,7 +61,7 @@ jobs:
     name: test (java harness)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index fc67169..0801fa7 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -57,7 +57,7 @@ jobs:
           - target: aarch64-apple-darwin
             os: macos-14
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Install Rust toolchain (pinned by rust-toolchain.toml)
         run: rustup show
@@ -135,7 +135,7 @@ jobs:
     runs-on: ubuntu-latest
     environment: release
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Install Rust toolchain
         run: rustup show
@@ -187,7 +187,7 @@ jobs:
       contents: read
       packages: write
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Resolve version
         id: ver
@@ -196,7 +196,7 @@ jobs:
       # Both Dockerfiles `COPY workload-harness/target/workload-harness.jar`,
       # so the fat-jar must exist in the build context before buildx runs.
       - name: Set up JDK 21
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: '21'