diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 61adbab..f7e0f97 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -53,7 +53,7 @@ jobs:
         run: cargo +nightly doc -p agent-client-protocol --all-features --no-deps
 
       - name: Install just
-        uses: taiki-e/install-action@6887963ccf37a9ddcd8c5fa4baeb3e1e5fd61fa1
+        uses: taiki-e/install-action@0631aa6515c7d545823c67cfae7ef4fc7f490154
         with:
           tool: just
 
@@ -88,7 +88,7 @@ jobs:
           toolchain: stable
 
       - name: Install cargo-hack
-        uses: taiki-e/install-action@6887963ccf37a9ddcd8c5fa4baeb3e1e5fd61fa1
+        uses: taiki-e/install-action@0631aa6515c7d545823c67cfae7ef4fc7f490154
         with:
           tool: cargo-hack
 
diff --git a/.github/workflows/mdbook.yml b/.github/workflows/mdbook.yml
index 3b10b8c..fa21a86 100644
--- a/.github/workflows/mdbook.yml
+++ b/.github/workflows/mdbook.yml
@@ -34,7 +34,7 @@ jobs:
       - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
 
       - name: Install mdBook
-        uses: taiki-e/install-action@6887963ccf37a9ddcd8c5fa4baeb3e1e5fd61fa1
+        uses: taiki-e/install-action@0631aa6515c7d545823c67cfae7ef4fc7f490154
         with:
           tool: mdbook,mdbook-mermaid