diff --git a/package.json b/package.json
index ef79b28..805f519 100644
--- a/package.json
+++ b/package.json
@@ -3,13 +3,13 @@
   "version": "1.0.0",
   "devDependencies": {
     "npm-run-all": "^4.1.3",
-    "rollup": "^0.58.2",
-    "rollup-plugin-commonjs": "^9.1.3",
+    "rollup": "^0.64.1",
+    "rollup-plugin-commonjs": "^9.1.5",
     "rollup-plugin-node-resolve": "^3.0.3",
-    "rollup-plugin-svelte": "^4.0.0",
+    "rollup-plugin-svelte": "^4.2.1",
     "rollup-plugin-terser": "^1.0.1",
-    "serve": "^6.5.6",
-    "svelte": "^2.6.0"
+    "serve": "^9.4.2",
+    "svelte": "^2.10.1"
   },
   "scripts": {
     "build": "rollup -c",