diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c45fce1e..82251d49 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -112,7 +112,7 @@ jobs:
         run: cargo +stable doc -p agent-client-protocol --lib --target wasm32-wasip2 --all-features --no-deps --locked
 
       - name: Install just
-        uses: taiki-e/install-action@4076c08d76dba979c11a7285295b0716c1d67908
+        uses: taiki-e/install-action@9983c65e42da123ff25d1f78505eb6de315aa172
         with:
           tool: just
 
@@ -147,7 +147,7 @@ jobs:
           toolchain: stable
 
       - name: Install cargo-hack
-        uses: taiki-e/install-action@4076c08d76dba979c11a7285295b0716c1d67908
+        uses: taiki-e/install-action@9983c65e42da123ff25d1f78505eb6de315aa172
         with:
           tool: cargo-hack
 
diff --git a/.github/workflows/mdbook.yml b/.github/workflows/mdbook.yml
index 053a87ce..a04f8b65 100644
--- a/.github/workflows/mdbook.yml
+++ b/.github/workflows/mdbook.yml
@@ -34,7 +34,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1
 
       - name: Install mdBook
-        uses: taiki-e/install-action@4076c08d76dba979c11a7285295b0716c1d67908
+        uses: taiki-e/install-action@9983c65e42da123ff25d1f78505eb6de315aa172
         with:
           tool: mdbook,mdbook-mermaid