diff --git a/package-lock.json b/package-lock.json
index 605de08..1912288 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "nodehtml2img",
-  "version": "0.0.13",
+  "version": "0.0.19",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -184,11 +184,6 @@
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
     },
-    "interval-promise": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/interval-promise/-/interval-promise-1.4.0.tgz",
-      "integrity": "sha512-PUwEmGqUglJhb6M01JNvMDvxr4DA8FCeYoYCLHPEcBBZiq/8yOpCchfs1VJui7fXj69l170gAxzF1FeSA0nSlg=="
-    },
     "mime": {
       "version": "2.4.6",
       "resolved": "https://registry.npmjs.org/mime/-/mime-2.4.6.tgz",
@@ -272,14 +267,6 @@
         "ws": "^7.2.3"
       }
     },
-    "puppeteer-cluster": {
-      "version": "0.21.0",
-      "resolved": "https://registry.npmjs.org/puppeteer-cluster/-/puppeteer-cluster-0.21.0.tgz",
-      "integrity": "sha512-/x5mei0vXxFPpJ7iUS+xJ3rOcxxYUa2YeEyuWI9m0M5e8ammPiCXjvOsTcni+4ZAop3L2gpZFkxafPvXWOoRfg==",
-      "requires": {
-        "debug": "^4.1.1"
-      }
-    },
     "readable-stream": {
       "version": "3.6.0",
       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
@@ -364,9 +351,9 @@
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
     "ws": {
-      "version": "7.3.0",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.3.0.tgz",
-      "integrity": "sha512-iFtXzngZVXPGgpTlP1rBqsUK82p9tKqsWRPg5L56egiljujJT3vGAYnHANvFxBieXrTFavhzhxW52jnaWV+w2w=="
+      "version": "7.4.6",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz",
+      "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A=="
     },
     "yauzl": {
       "version": "2.10.0",