diff --git a/package.json b/package.json
index bf262fa..1e36a38 100644
--- a/package.json
+++ b/package.json
@@ -14,13 +14,13 @@
   "dependencies": {
     "compression": "^1.7.1",
     "polka": "^0.3.4",
-    "sapper": "^0.10.0",
+    "sapper": "^0.12.0",
     "serve-static": "^1.13.1"
   },
   "devDependencies": {
     "npm-run-all": "^4.1.2",
     "svelte": "^2.0.0",
-    "svelte-loader": "^2.3.3",
-    "webpack": "^4.1.0"
+    "svelte-loader": "^2.9.0",
+    "webpack": "^4.7.0"
   }
 }