diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4399d9f57..05ba512a6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,7 +46,7 @@ jobs:
           version: "0.11.2"
           python-version: "3.13"
           enable-cache: true # zizmor: ignore[cache-poisoning] CI-only, no artifacts published
-      - uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # zizmor: ignore[cache-poisoning]
+      - uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # zizmor: ignore[cache-poisoning]
         name: Cache mypy cache
         with:
           path: ./.mypy_cache
diff --git a/.github/workflows/package-availability-check.yml b/.github/workflows/package-availability-check.yml
index 836213f89..e9e0afdef 100644
--- a/.github/workflows/package-availability-check.yml
+++ b/.github/workflows/package-availability-check.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies using pip