diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7a69cb8..798b0b0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -45,7 +45,7 @@ jobs:
           key: data-${{ hashFiles('src/data/*') }}-${{ steps.date.outputs.date }}
 
       - name: 'Install dependencies'
-        run: npm ci
+        run: npm ci --engine-strict
 
       - name: 'Build dist'
         run: npx observable build
@@ -115,7 +115,7 @@ jobs:
           cache: ${{ !env.ACT && 'npm' || '' }}
 
       - name: 'Install dependencies'
-        run: npm ci
+        run: npm ci --engine-strict
 
       - name: 'Run formatter'
         run: npx prettier --ignore-unknown --check '**'
@@ -137,7 +137,7 @@ jobs:
           cache: ${{ !env.ACT && 'npm' || '' }}
 
       - name: 'Install dependencies'
-        run: npm ci
+        run: npm ci --engine-strict
 
       - name: 'Run the linter'
         run: npx eslint . --max-warnings 0
@@ -159,7 +159,7 @@ jobs:
           cache: ${{ !env.ACT && 'npm' || '' }}
 
       - name: 'Install dependencies'
-        run: npm ci
+        run: npm ci --engine-strict
 
       - name: 'Run the tests'
         run: npx vitest run
@@ -183,7 +183,7 @@ jobs:
           cache: ${{ !env.ACT && 'npm' || '' }}
 
       - name: 'Install dependencies'
-        run: npm ci
+        run: npm ci --engine-strict
 
       - name: 'Download dist'
         uses: actions/download-artifact@v4.1.8
@@ -221,7 +221,7 @@ jobs:
           cache: ${{ !env.ACT && 'npm' || '' }}
 
       - name: 'Install dependencies'
-        run: npm ci
+        run: npm ci --engine-strict
 
       - name: 'Run typechecker'
         run: npx tsc --noEmit
diff --git a/.github/workflows/fix-playwright-versions.yml b/.github/workflows/fix-playwright-versions.yml
index 30b7d12..5f838fc 100644
--- a/.github/workflows/fix-playwright-versions.yml
+++ b/.github/workflows/fix-playwright-versions.yml
@@ -27,7 +27,7 @@ jobs:
           cache: ${{ !env.ACT && 'npm' || '' }}
 
       - name: 'Install dependencies'
-        run: npm ci --ignore-scripts
+        run: npm ci --engine-strict --ignore-scripts
 
       - name: 'Fix Playwright versions'
         run: scripts/fix-playwright-versions.sh
diff --git a/Makefile b/Makefile
index e46ce20..9a515d8 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@ IMAGE_TAG=prereview-stats
 export OBSERVABLE_TELEMETRY_DISABLE := 1
 
 node_modules: package.json package-lock.json
-	npm install
+	npm install --engine-strict
 	touch node_modules
 
 .env:
diff --git a/package-lock.json b/package-lock.json
index 81ba380..c4f13be 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,7 +25,7 @@
         "@dotenvx/dotenvx": "^1.32.0",
         "@playwright/test": "^1.49.1",
         "@trivago/prettier-plugin-sort-imports": "^5.2.1",
-        "@tsconfig/node20": "^20.1.4",
+        "@tsconfig/node22": "^22.0.0",
         "@types/all-the-cities": "^3.1.3",
         "@types/diacritics": "^1.3.3",
         "@types/node": "^22.10.5",
@@ -44,7 +44,8 @@
         "vitest": "^2.1.8"
       },
       "engines": {
-        "node": ">=18"
+        "node": "22",
+        "npm": "9 || 10"
       }
     },
     "node_modules/@asamuzakjp/dom-selector": {
@@ -190,6 +191,7 @@
     },
     "node_modules/@clack/prompts/node_modules/is-unicode-supported": {
       "version": "1.3.0",
+      "extraneous": true,
       "inBundle": true,
       "license": "MIT",
       "engines": {
@@ -1926,11 +1928,12 @@
         }
       }
     },
-    "node_modules/@tsconfig/node20": {
-      "version": "20.1.4",
-      "resolved": "https://registry.npmjs.org/@tsconfig/node20/-/node20-20.1.4.tgz",
-      "integrity": "sha512-sqgsT69YFeLWf5NtJ4Xq/xAF8p4ZQHlmGW74Nu2tD4+g5fAsposc4ZfaaPixVu4y01BEiDCWLRDCvDM5JOsRxg==",
-      "dev": true
+    "node_modules/@tsconfig/node22": {
+      "version": "22.0.0",
+      "resolved": "https://registry.npmjs.org/@tsconfig/node22/-/node22-22.0.0.tgz",
+      "integrity": "sha512-twLQ77zevtxobBOD4ToAtVmuYrpeYUh3qh+TEp+08IWhpsrIflVHqQ1F1CiPxQGL7doCdBIOOCF+1Tm833faNg==",
+      "dev": true,
+      "license": "MIT"
     },
     "node_modules/@types/all-the-cities": {
       "version": "3.1.3",
diff --git a/package.json b/package.json
index 071a3ff..5acb653 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
     "@dotenvx/dotenvx": "^1.32.0",
     "@playwright/test": "^1.49.1",
     "@trivago/prettier-plugin-sort-imports": "^5.2.1",
-    "@tsconfig/node20": "^20.1.4",
+    "@tsconfig/node22": "^22.0.0",
     "@types/all-the-cities": "^3.1.3",
     "@types/diacritics": "^1.3.3",
     "@types/node": "^22.10.5",
@@ -41,6 +41,7 @@
     "vitest": "^2.1.8"
   },
   "engines": {
-    "node": ">=18"
+    "node": "22",
+    "npm": "9 || 10"
   }
 }
diff --git a/tsconfig.json b/tsconfig.json
index 13c34b5..b245e79 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,5 +1,5 @@
 {
-  "extends": "@tsconfig/node20/tsconfig.json",
+  "extends": "@tsconfig/node22/tsconfig.json",
   "compilerOptions": {
     "exactOptionalPropertyTypes": true,
     "resolveJsonModule": true