diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index 4bce0c86d..e27fa6b30 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -50,7 +50,6 @@ jobs:
     with:
       additional-env-vars: |
         _R_CHECK_EXAMPLE_TIMING_THRESHOLD_=11
-        TESTING_DEPTH=5
       enforce-note-blocklist: true
       publish-unit-test-report-gh-pages: false
       junit-xml-comparison: false