diff --git a/package-lock.json b/package-lock.json
index a63479e..5f5fd5b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "sapper",
-  "version": "0.26.0-alpha.1",
+  "version": "0.26.0-alpha.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -696,12 +696,6 @@
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       "dev": true
     },
-    "arg": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.0.tgz",
-      "integrity": "sha512-ZWc51jO3qegGkVh8Hwpv636EkbesNV5ZNQPCtRa+0qytRYPEs9IYT9qITY9buezqUH5uqyzlWLcufrzU2rffdg==",
-      "dev": true
-    },
     "argparse": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
@@ -3631,12 +3625,6 @@
         }
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     },
-    "make-error": {
-      "version": "1.3.5",
-      "resolved": "https://registry.npmjs.org/make-error/-/make-error-1.3.5.tgz",
-      "integrity": "sha512-c3sIjNUow0+8swNwVpqoH4YCShKNFkMaw6oH1mNS2haDZQqkeZFlHS3dhoeEbKKmJB4vXpJucU6oH75aDYeE9g==",
-      "dev": true
-    },
     "map-cache": {
       "version": "0.2.2",
       "resolved": "https://registry.npmjs.org/map-cache/-/map-cache-0.2.2.tgz",
@@ -5233,16 +5221,6 @@
         }
       }
     },
-    "rollup-plugin-typescript": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/rollup-plugin-typescript/-/rollup-plugin-typescript-1.0.0.tgz",
-      "integrity": "sha512-d2KDNMJXgaaB//dDGd/YmyMiopt1Pz965Iu3zmEoL08YqNcKRBz26uHqqc47rFGfrJV5kFqifC9IYlh6dpSCLg==",
-      "dev": true,
-      "requires": {
-        "resolve": "^1.8.1",
-        "rollup-pluginutils": "^2.3.1"
-      }
-    },
     "rollup-plugin-virtual": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/rollup-plugin-virtual/-/rollup-plugin-virtual-1.0.1.tgz",
@@ -6028,19 +6006,6 @@
         "matchit": "^1.0.0"
       }
     },
-    "ts-node": {
-      "version": "8.0.2",
-      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-8.0.2.tgz",
-      "integrity": "sha512-MosTrinKmaAcWgO8tqMjMJB22h+sp3Rd1i4fdoWY4mhBDekOwIAKI/bzmRi7IcbCmjquccYg2gcF6NBkLgr0Tw==",
-      "dev": true,
-      "requires": {
-        "arg": "^4.1.0",
-        "diff": "^3.1.0",
-        "make-error": "^1.1.1",
-        "source-map-support": "^0.5.6",
-        "yn": "^3.0.0"
-      }
-    },
     "tslib": {
       "version": "1.9.3",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
@@ -6067,12 +6032,6 @@
       "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=",
       "dev": true
     },
-    "typescript": {
-      "version": "3.3.1",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.3.1.tgz",
-      "integrity": "sha512-cTmIDFW7O0IHbn1DPYjkiebHxwtCMU+eTy30ZtJNBPF9j2O1ITu5XH2YnBeVRKWHqF+3JQwWJv0Q0aUgX8W7IA==",
-      "dev": true
-    },
     "uglify-js": {
       "version": "3.4.9",
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.4.9.tgz",
@@ -6693,12 +6652,6 @@
         "fd-slicer": "~1.0.1"
       }
     },
-    "yn": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/yn/-/yn-3.0.0.tgz",
-      "integrity": "sha512-+Wo/p5VRfxUgBUGy2j/6KX2mj9AYJWOHuhMjMcbBFc3y54o9/4buK1ksBvuiK01C3kby8DH9lSmJdSxw+4G/2Q==",
-      "dev": true
-    },
     "yootils": {
       "version": "0.0.14",
       "resolved": "https://registry.npmjs.org/yootils/-/yootils-0.0.14.tgz",
diff --git a/package.json b/package.json
index 1529def..9e4ab9d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sapper",
-  "version": "0.26.0-alpha.3",
+  "version": "0.26.0-alpha.4",
   "description": "Military-grade apps, engineered by Svelte",
   "bin": {
     "sapper": "./sapper"
@@ -56,15 +56,12 @@
     "rollup-plugin-string": "^2.0.2",
     "rollup-plugin-sucrase": "^2.1.0",
     "rollup-plugin-svelte": "^5.0.1",
-    "rollup-plugin-typescript": "^1.0.0",
     "sade": "^1.4.2",
     "sander": "^0.6.0",
     "sirv": "^0.2.2",
     "sucrase": "^3.9.5",
     "svelte": "^3.0.0-alpha27",
     "svelte-loader": "^2.12.0",
-    "ts-node": "^8.0.2",
-    "typescript": "^3.3.1",
     "webpack": "^4.29.0",
     "webpack-format-messages": "^2.0.5",
     "yootils": "0.0.14"