diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 4b0fe84..470b8d6 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -11,6 +11,10 @@ updates:
     groups:
       minor-and-patch:
         update-types: [minor, patch]
+    # Major upgrades (e.g. Next 16, AI SDK 7) are planned migrations, not automatic bumps.
+    ignore:
+      - dependency-name: "*"
+        update-types: ["version-update:semver-major"]
 
   - package-ecosystem: github-actions
     directory: /
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5aa26f5..979d48e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,9 +21,7 @@ jobs:
           node-version: '22'
 
       - name: Setup pnpm
-        uses: pnpm/action-setup@v6
-        with:
-          version: 9
+        uses: pnpm/action-setup@v6 # version from package.json "packageManager"
 
       - name: Get pnpm store directory
         id: pnpm-cache
@@ -66,9 +64,7 @@ jobs:
           node-version: '22'
 
       - name: Setup pnpm
-        uses: pnpm/action-setup@v6
-        with:
-          version: 9
+        uses: pnpm/action-setup@v6 # version from package.json "packageManager"
 
       - name: Get pnpm store directory
         id: pnpm-cache
@@ -114,9 +110,7 @@ jobs:
           node-version: '22'
 
       - name: Setup pnpm
-        uses: pnpm/action-setup@v6
-        with:
-          version: 9
+        uses: pnpm/action-setup@v6 # version from package.json "packageManager"
 
       - name: Get pnpm store directory
         id: pnpm-cache
diff --git a/package.json b/package.json
index d2cd751..a4ca158 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "license": "MIT",
+  "packageManager": "pnpm@9.15.9",
   "scripts": {
     "build": "next build",
     "dev": "next dev",