diff --git a/package.json b/package.json
index e921003..9791109 100644
--- a/package.json
+++ b/package.json
@@ -41,16 +41,16 @@
   },
   "homepage": "https://github.com/mourner/flatbush#readme",
   "devDependencies": {
-    "eslint": "^5.6.1",
+    "eslint": "^5.11.1",
     "eslint-config-mourner": "^3.0.0",
     "esm": "^3.0.84",
     "rbush": "^2.0.2",
     "rbush-knn": "^2.1.0",
-    "rollup": "^0.66.5",
-    "rollup-plugin-buble": "^0.19.4",
-    "rollup-plugin-node-resolve": "^3.4.0",
-    "rollup-plugin-terser": "^3.0.0",
-    "tape": "^4.9.1"
+    "rollup": "^1.0.1",
+    "rollup-plugin-buble": "^0.19.6",
+    "rollup-plugin-node-resolve": "^4.0.0",
+    "rollup-plugin-terser": "^4.0.1",
+    "tape": "^4.9.2"
   },
   "dependencies": {
     "flatqueue": "^1.1.0"