diff --git a/.github/workflows/check-misskey-js-autogen.yml b/.github/workflows/check-misskey-js-autogen.yml
index 9052b2e3722e..3eb09bc27287 100644
--- a/.github/workflows/check-misskey-js-autogen.yml
+++ b/.github/workflows/check-misskey-js-autogen.yml
@@ -24,7 +24,7 @@ jobs:
           ref: refs/pull/${{ github.event.pull_request.number }}/merge
 
       - name: setup pnpm
-        uses: pnpm/action-setup@v3
+        uses: pnpm/action-setup@v4
         with:
           version: 9
 
diff --git a/.github/workflows/get-api-diff.yml b/.github/workflows/get-api-diff.yml
index 146e0686e584..e35e7ee633f1 100644
--- a/.github/workflows/get-api-diff.yml
+++ b/.github/workflows/get-api-diff.yml
@@ -32,7 +32,7 @@ jobs:
         ref: ${{ matrix.ref }}
         submodules: true
     - name: Install pnpm
-      uses: pnpm/action-setup@v3
+      uses: pnpm/action-setup@v4
       with:
         version: 9
         run_install: false
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 9a269014ab82..7b94b668e482 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -27,7 +27,7 @@ jobs:
       with:
         fetch-depth: 0
         submodules: true
-    - uses: pnpm/action-setup@v3
+    - uses: pnpm/action-setup@v4
       with:
         version: 9
         run_install: false
@@ -54,7 +54,7 @@ jobs:
       with:
         fetch-depth: 0
         submodules: true
-    - uses: pnpm/action-setup@v3
+    - uses: pnpm/action-setup@v4
       with:
         version: 9
         run_install: false
@@ -80,7 +80,7 @@ jobs:
       with:
         fetch-depth: 0
         submodules: true
-    - uses: pnpm/action-setup@v3
+    - uses: pnpm/action-setup@v4
       with:
         version: 9
         run_install: false
diff --git a/.github/workflows/on-release-created.yml b/.github/workflows/on-release-created.yml
index 52463d7542f9..a36584f86f95 100644
--- a/.github/workflows/on-release-created.yml
+++ b/.github/workflows/on-release-created.yml
@@ -24,7 +24,7 @@ jobs:
         with:
           submodules: true
       - name: Install pnpm
-        uses: pnpm/action-setup@v3
+        uses: pnpm/action-setup@v4
         with:
           version: 9
           run_install: false
diff --git a/.github/workflows/storybook.yml b/.github/workflows/storybook.yml
index 3bc354b331c7..7833a42e2cac 100644
--- a/.github/workflows/storybook.yml
+++ b/.github/workflows/storybook.yml
@@ -34,7 +34,7 @@ jobs:
         echo "base=$(git rev-list --parents -n1 HEAD | cut -d" " -f2)" >> $GITHUB_OUTPUT
         git checkout $(git rev-list --parents -n1 HEAD | cut -d" " -f3)
     - name: Install pnpm
-      uses: pnpm/action-setup@v3
+      uses: pnpm/action-setup@v4
       with:
         version: 9
         run_install: false
diff --git a/.github/workflows/test-backend.yml b/.github/workflows/test-backend.yml
index 525cd0916b0f..bb00f0fa7c44 100644
--- a/.github/workflows/test-backend.yml
+++ b/.github/workflows/test-backend.yml
@@ -41,7 +41,7 @@ jobs:
       with:
         submodules: true
     - name: Install pnpm
-      uses: pnpm/action-setup@v3
+      uses: pnpm/action-setup@v4
       with:
         version: 9
         run_install: false
@@ -93,7 +93,7 @@ jobs:
         with:
           submodules: true
       - name: Install pnpm
-        uses: pnpm/action-setup@v3
+        uses: pnpm/action-setup@v4
         with:
           version: 9
           run_install: false
diff --git a/.github/workflows/test-frontend.yml b/.github/workflows/test-frontend.yml
index 9df3c983935a..0c1a88469620 100644
--- a/.github/workflows/test-frontend.yml
+++ b/.github/workflows/test-frontend.yml
@@ -33,7 +33,7 @@ jobs:
       with:
         submodules: true
     - name: Install pnpm
-      uses: pnpm/action-setup@v3
+      uses: pnpm/action-setup@v4
       with:
         version: 9
         run_install: false
@@ -91,7 +91,7 @@ jobs:
     #- uses: browser-actions/setup-firefox@latest
     #  if: ${{ matrix.browser == 'firefox' }}
     - name: Install pnpm
-      uses: pnpm/action-setup@v3
+      uses: pnpm/action-setup@v4
       with:
         version: 9
         run_install: false
diff --git a/.github/workflows/test-production.yml b/.github/workflows/test-production.yml
index 24a530e07370..82b2fc1a8b08 100644
--- a/.github/workflows/test-production.yml
+++ b/.github/workflows/test-production.yml
@@ -23,7 +23,7 @@ jobs:
       with:
         submodules: true
     - name: Install pnpm
-      uses: pnpm/action-setup@v3
+      uses: pnpm/action-setup@v4
       with:
         version: 9
         run_install: false
diff --git a/.github/workflows/validate-api-json.yml b/.github/workflows/validate-api-json.yml
index 229c447893bc..eb2deff98e17 100644
--- a/.github/workflows/validate-api-json.yml
+++ b/.github/workflows/validate-api-json.yml
@@ -24,7 +24,7 @@ jobs:
       with:
         submodules: true
     - name: Install pnpm
-      uses: pnpm/action-setup@v3
+      uses: pnpm/action-setup@v4
       with:
         version: 9
         run_install: false