diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d90401edd..06bb8fb9c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -187,7 +187,7 @@ jobs:
       - uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '10.0.x'
-      - uses: actions/cache@v4
+      - uses: actions/cache@v6
         with:
           path: tools/packaging/.cache/http3-natives
           key: http3-natives-${{ hashFiles('tools/packaging/http3-native.lock.json') }}-${{ matrix.rid }}
@@ -367,7 +367,7 @@ jobs:
       - uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '10.0.x'
-      - uses: actions/cache@v4
+      - uses: actions/cache@v6
         with:
           path: tools/packaging/.cache/http3-natives
           key: http3-natives-${{ hashFiles('tools/packaging/http3-native.lock.json') }}-${{ matrix.rid }}
diff --git a/.github/workflows/rps-saturation.yml b/.github/workflows/rps-saturation.yml
index a3d2e37c5..a2d3ea610 100644
--- a/.github/workflows/rps-saturation.yml
+++ b/.github/workflows/rps-saturation.yml
@@ -1,4 +1,4 @@
-# Manual saturation RPS lab on GitHub-hosted VMs (not a job container).
+# Manual saturation RPS lab on GitHub-hosted VMs (not a job container).
 # Maintainers run this, then paste median numbers into wiki/Performance.md.
 # Not a per-PR gate; not comparable to dedicated-server blog posts.
 #
@@ -380,7 +380,7 @@ jobs:
       # macOS uses Homebrew (typically native USE_QUIC) with a 3.2 osx source fallback.
       - name: Cache HAProxy QUIC prefix
         if: runner.os == 'Linux'
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ${{ runner.temp }}/haproxy-quic
@@ -470,7 +470,7 @@ jobs:
 
       - name: Cache HAProxy QUIC prefix (macOS)
         if: runner.os == 'macOS'
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: ${{ runner.temp }}/haproxy-quic
           key: haproxy-3.2.23-quic-osx-x64