diff --git a/package.json b/package.json
index 307a500..3c984bb 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "body-parser": "^1.14.1",
     "browser-sync": "^2.14.0",
     "consolidate": "0.x",
-    "express": "4.13.3",
+    "express": "4.17.3",
     "express-nunjucks": "^0.9.3",
     "express-writer": "0.0.4",
     "govuk-elements-sass": "alphagov/govuk_elements#v1.1.1",
@@ -25,7 +25,7 @@
     "grunt": "0.4.5",
     "grunt-cli": "0.1.13",
     "grunt-concurrent": "0.4.3",
-    "grunt-contrib-watch": "0.5.3",
+    "grunt-contrib-watch": "0.6.0",
     "grunt-nodemon": "0.4.0",
     "grunt-sass": "^1.1.0",
     "grunt-sync": "^0.5.1",