diff --git a/.github/workflows/toc.yaml b/.github/workflows/toc.yaml
index 5db086f..979a166 100644
--- a/.github/workflows/toc.yaml
+++ b/.github/workflows/toc.yaml
@@ -7,4 +7,4 @@ jobs:
     name: TOC Generator
     runs-on: ubuntu-latest
     steps:
-      - uses: technote-space/toc-generator@v4
+      - uses: technote-space/toc-generator@v4.3.1