diff --git a/.github/workflows/delete-pr-cache.yml b/.github/workflows/delete-pr-cache.yml
index 38005aaf..be30e007 100644
--- a/.github/workflows/delete-pr-cache.yml
+++ b/.github/workflows/delete-pr-cache.yml
@@ -13,10 +13,16 @@ jobs:
           gh extension install actions/gh-actions-cache
           REPO='${{ github.repository }}'
           BRANCH='refs/pull/${{ github.event.pull_request.number }}/merge'
-          readarray -t CACHE_KEYS < <(gh actions-cache list --repo "$REPO" --branch "$BRANCH" --limit 100 | cut --fields=1)
 
-          for CACHE_KEY in "${CACHE_KEYS[@]}"; do
-              gh actions-cache delete "$CACHE_KEY" --repo "$REPO" --branch "$BRANCH" --confirm
+          while true; do
+            readarray -t CACHE_KEYS < <(gh actions-cache list --repo "$REPO" --branch "$BRANCH" --limit 100 | cut --fields=1)
+            if [[ "${#CACHE_KEYS[@]}" -eq 0 ]]; then
+              break
+            fi
+
+            for CACHE_KEY in "${CACHE_KEYS[@]}"; do
+                gh actions-cache delete "$CACHE_KEY" --repo "$REPO" --branch "$BRANCH" --confirm
+            done
           done
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}