diff --git a/.github/workflows/toc.yml b/.github/workflows/toc.yml
index adf523a8..046e45c5 100644
--- a/.github/workflows/toc.yml
+++ b/.github/workflows/toc.yml
@@ -20,7 +20,7 @@ jobs:
     name: toc generator
     runs-on: ubuntu-latest
     steps:
-      - uses: technote-space/toc-generator@v4.2.2
+      - uses: technote-space/toc-generator@v4.3.1
         with:
           TARGET_PATHS: "README.md"
           INCLUDE_LABELS: documentation