diff --git a/.github/workflows/pull-request-dashboard-repo.yml b/.github/workflows/pull-request-dashboard-repo.yml
index 6f31dde3..2284f43f 100644
--- a/.github/workflows/pull-request-dashboard-repo.yml
+++ b/.github/workflows/pull-request-dashboard-repo.yml
@@ -152,7 +152,7 @@ jobs:
 
       - name: Restore per-PR classification cache
         if: inputs.pr_number != ''
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: .github/scripts/pull-request-dashboard/.cache/classifications
           key: pull-request-dashboard-classifications-${{ inputs.repository }}-${{ inputs.pr_number }}-${{ github.run_id }}
@@ -161,7 +161,7 @@ jobs:
 
       - name: Restore shared full-rebuild classification cache
         if: inputs.pr_number == ''
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: .github/scripts/pull-request-dashboard/.cache/classifications
           key: pull-request-dashboard-classifications-${{ inputs.repository }}-all-${{ github.run_id }}