diff --git a/package.json b/package.json
index 3ec7956..1d2e540 100644
--- a/package.json
+++ b/package.json
@@ -41,20 +41,20 @@
   "devDependencies": {
     "blue-tape": "^1.0.0",
     "istanbul": "^0.4.2",
-    "tap-spec": "^4.1.1",
+    "tap-spec": "^5.0.0",
     "tslint": "^5.9.1",
-    "typescript": "^2.8.1"
+    "typescript": "^3.4.5"
   },
   "dependencies": {
     "@types/blue-tape": "^0.1.31",
     "@types/mkdirp": "^0.5.2",
-    "@types/node": "^9.6.5",
+    "@types/node": "^12.0.0",
     "@types/parse-json": "^4.0.0",
-    "@types/yargs": "^11.0.0",
+    "@types/yargs": "^13.0.0",
     "mkdirp": "^0.5.0",
     "parse-json": "^4.0.0",
     "raml-1-parser": "^1.1.41",
     "thenify": "^3.2.0",
-    "yargs": "^11.0.0"
+    "yargs": "^13.2.2"
   }
 }