diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1ed223e9..0609920a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
       - name: Lint (rustfmt)
         run: cargo xfmt --check
       - name: Install cargo readme
-        uses: taiki-e/install-action@a416ddeedbd372e614cc1386e8b642692f66865e # v2
+        uses: taiki-e/install-action@bbdef1c33cb8ed1fd122d68d8374ac79998d6960 # v2
         with:
           tool: cargo-readme
       - name: Run cargo readme