diff --git a/.github/workflows/elixir-dialyzer.yml b/.github/workflows/elixir-dialyzer.yml
index 2e9e58b..c5dffcf 100644
--- a/.github/workflows/elixir-dialyzer.yml
+++ b/.github/workflows/elixir-dialyzer.yml
@@ -37,7 +37,7 @@ jobs:
       # Don't cache PLTs based on mix.lock hash, as Dialyzer can incrementally update even old ones.
       # Cache key based on Elixir & Erlang version (also useful when running in matrix).
       - name: Restore PLT cache
-        uses: actions/cache@v5
+        uses: actions/cache@v6.1.0
         id: plt_cache
         with:
           key: ${{ runner.os }}-${{ matrix.elixir }}-${{ matrix.otp }}-plt