diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c62ee1a..d3ec839 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -31,7 +31,7 @@ jobs:
           node-version: 22
 
       - name: Install just
-        uses: taiki-e/install-action@v2.87.16
+        uses: taiki-e/install-action@v2.87.21
         with:
           tool: just@1.40.0
 
@@ -125,7 +125,7 @@ jobs:
           node-version: 22
 
       - name: Install just
-        uses: taiki-e/install-action@v2.87.16
+        uses: taiki-e/install-action@v2.87.21
         with:
           tool: just@1.40.0
 
@@ -188,7 +188,7 @@ jobs:
           node-version: 22
 
       - name: Install just
-        uses: taiki-e/install-action@v2.87.15
+        uses: taiki-e/install-action@v2.87.21
         with:
           tool: just@1.40.0
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3483321..5aa39bd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,7 +35,7 @@ jobs:
           node-version: 22
 
       - name: Install just
-        uses: taiki-e/install-action@v2.87.16
+        uses: taiki-e/install-action@v2.87.21
         with:
           tool: just@1.40.0