diff --git a/.github/workflows/qc-mac.yaml b/.github/workflows/qc-mac.yaml
index beb2d4af..20952874 100644
--- a/.github/workflows/qc-mac.yaml
+++ b/.github/workflows/qc-mac.yaml
@@ -19,7 +19,7 @@ jobs:
     runs-on: warp-macos-26-arm64-6x
     steps:
       - uses: actions/checkout@v7
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/bin/
diff --git a/.github/workflows/qc.yaml b/.github/workflows/qc.yaml
index eec04f6e..c7d3f4e4 100644
--- a/.github/workflows/qc.yaml
+++ b/.github/workflows/qc.yaml
@@ -40,7 +40,7 @@ jobs:
     runs-on: ubicloud-standard-2
     steps:
       - uses: actions/checkout@v7
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/bin/
@@ -68,7 +68,7 @@ jobs:
     runs-on: ubicloud-standard-2
     steps:
       - uses: actions/checkout@v7
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/bin/
@@ -87,7 +87,7 @@ jobs:
     runs-on: ubicloud-standard-2
     steps:
       - uses: actions/checkout@v7
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/bin/
@@ -106,7 +106,7 @@ jobs:
     runs-on: ubicloud-standard-2
     steps:
       - uses: actions/checkout@v7
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/bin/
@@ -124,7 +124,7 @@ jobs:
     runs-on: ubicloud-standard-2
     steps:
       - uses: actions/checkout@v7
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/bin/
@@ -146,7 +146,7 @@ jobs:
     runs-on: ubicloud-standard-2
     steps:
       - uses: actions/checkout@v7
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/bin/
@@ -186,7 +186,7 @@ jobs:
       RUSTUP_TOOLCHAIN: nightly
     steps:
       - uses: actions/checkout@v7
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/bin/
diff --git a/.github/workflows/supply-chain.yml b/.github/workflows/supply-chain.yml
index 842f65cf..aeeddb14 100644
--- a/.github/workflows/supply-chain.yml
+++ b/.github/workflows/supply-chain.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubicloud-standard-2
     steps:
       - uses: actions/checkout@v7
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/bin/
@@ -26,7 +26,7 @@ jobs:
         run: |
           rustup toolchain install nightly
           rustup override set nightly
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: ${{ runner.tool_cache }}/cargo-supply-chain
           key: cargo-supply-chain-bin
@@ -50,7 +50,7 @@ jobs:
       - uses: actions/checkout@v7
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/bin/
@@ -61,7 +61,7 @@ jobs:
         run: |
           rustup toolchain install nightly
           rustup override set nightly
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: ${{ runner.tool_cache }}/cargo-vet
           key: cargo-vet-bin