diff --git a/.github/workflows/issue-assignee-check.yml b/.github/workflows/issue-assignee-check.yml
index 7b2f3deb2..581882d9a 100644
--- a/.github/workflows/issue-assignee-check.yml
+++ b/.github/workflows/issue-assignee-check.yml
@@ -16,12 +16,16 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 2
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+
       - name: Set up Node.js
         uses: actions/setup-node@v4
         with:
           node-version: '18'
       - name: Install Octokit
-        run: npm install @octokit/rest@18
+        run: pnpm install @octokit/rest@18
 
       - name: Check Assigned User's Issue Count
         id: parse-comment
diff --git a/.github/workflows/pr-review-reminder.yml b/.github/workflows/pr-review-reminder.yml
index 67dc32f34..7f3c1a4ba 100644
--- a/.github/workflows/pr-review-reminder.yml
+++ b/.github/workflows/pr-review-reminder.yml
@@ -16,13 +16,17 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 2
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+
       - name: Set up Node.js
         uses: actions/setup-node@v4
         with:
           node-version: '18'
 
       - name: Install Octokit
-        run: npm install @octokit/rest@18
+        run: pnpm install @octokit/rest@18
 
       - name: Check user's PRs awaiting review
         id: parse-prs