diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2ac95364..50d316d9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -304,7 +304,7 @@ jobs:
       # in it. Keyed on the fixtures themselves: change what is simulated and
       # the tiles it needs change with it.
       - name: Cache what the fixtures download
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cache/meshbench/terrain