diff --git a/package-lock.json b/package-lock.json
index a08e1f0..11a09b0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6606,6 +6606,14 @@
         }
       }
     },
+    "eth-json-rpc-errors": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/eth-json-rpc-errors/-/eth-json-rpc-errors-1.1.1.tgz",
+      "integrity": "sha512-WT5shJ5KfNqHi9jOZD+ID8I1kuYWNrigtZat7GOQkvwo99f8SzAVaEcWhJUv656WiZOAg3P1RiJQANtUmDmbIg==",
+      "requires": {
+        "fast-safe-stringify": "^2.0.6"
+      }
+    },
     "eth-json-rpc-filters": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/eth-json-rpc-filters/-/eth-json-rpc-filters-4.0.3.tgz",
@@ -6617,6 +6625,65 @@
         "json-rpc-engine": "^5.0.0",
         "lodash.flatmap": "^4.5.0",
         "safe-event-emitter": "^1.0.1"
+      },
+      "dependencies": {
+        "async": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+          "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+          "requires": {
+            "lodash": "^4.17.14"
+          }
+        },
+        "eth-json-rpc-middleware": {
+          "version": "4.4.0",
+          "resolved": "https://registry.npmjs.org/eth-json-rpc-middleware/-/eth-json-rpc-middleware-4.4.0.tgz",
+          "integrity": "sha512-IeOsil/XiHsybJO9nFf86+1+YIqGQWPPfiTEp3WLkpLZhJm97kw6tFM7GttIZXIcwtaO3zEXgY6PWAH1jkB3ag==",
+          "requires": {
+            "btoa": "^1.2.1",
+            "clone": "^2.1.1",
+            "eth-json-rpc-errors": "^1.0.1",
+            "eth-query": "^2.1.2",
+            "eth-sig-util": "^1.4.2",
+            "ethereumjs-block": "^1.6.0",
+            "ethereumjs-tx": "^1.3.7",
+            "ethereumjs-util": "^5.1.2",
+            "ethereumjs-vm": "^2.6.0",
+            "fetch-ponyfill": "^4.0.0",
+            "json-rpc-engine": "^5.1.3",
+            "json-stable-stringify": "^1.0.1",
+            "pify": "^3.0.0",
+            "safe-event-emitter": "^1.0.1"
+          },
+          "dependencies": {
+            "json-rpc-engine": {
+              "version": "5.1.5",
+              "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-5.1.5.tgz",
+              "integrity": "sha512-HTT9HixG4j8vHYrmJIckgbISW9Q8tCkySv7x7Q8zjMpcw10wSe/dZSQ0w08VkDm3y195K4074UlvD3hxaznvlw==",
+              "requires": {
+                "async": "^2.0.1",
+                "eth-json-rpc-errors": "^2.0.0",
+                "promise-to-callback": "^1.0.0",
+                "safe-event-emitter": "^1.0.1"
+              },
+              "dependencies": {
+                "eth-json-rpc-errors": {
+                  "version": "2.0.0",
+                  "resolved": "https://registry.npmjs.org/eth-json-rpc-errors/-/eth-json-rpc-errors-2.0.0.tgz",
+                  "integrity": "sha512-casdSTVOxbC3ptfUdclJRvU0Sgmdm/QtezLku8l4iVR5wNFe+KF+tfnlm2I84xxpx7mkyyHeeUxmRkcB5Os6mw==",
+                  "requires": {
+                    "fast-safe-stringify": "^2.0.6"
+                  }
+                }
+              }
+            }
+          }
+        },
+        "lodash": {
+          "version": "4.17.15",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
+        }
       }
     },
     "eth-json-rpc-infura": {
@@ -7426,6 +7493,11 @@
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       "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc="
     },
+    "fast-safe-stringify": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/fast-safe-stringify/-/fast-safe-stringify-2.0.7.tgz",
+      "integrity": "sha512-Utm6CdzT+6xsDk2m8S6uL8VHxNwI6Jub+e9NYTcAms28T84pTa25GJQV9j0CY0N1rM8hK4x6grpF2BQf+2qwVA=="
+    },
     "faye-websocket": {
       "version": "0.11.3",
       "resolved": "https://registry.npmjs.org/faye-websocket/-/faye-websocket-0.11.3.tgz",
@@ -8260,9 +8332,9 @@
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     },
     "handlebars": {
-      "version": "4.1.2",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.1.2.tgz",
-      "integrity": "sha512-nvfrjqvt9xQ8Z/w0ijewdD/vvWDTOweBUm96NTr66Wfvo1mJenBLwcYmPs3TIBP5ruzYGD7Hx/DaM9RmhroGPw==",
+      "version": "4.5.3",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.5.3.tgz",
+      "integrity": "sha512-3yPecJoJHK/4c6aZhSvxOyG4vJKDshV36VHp0iVCDVh7o9w2vwi3NSnL2MMPj3YdduqaBcu7cGbggJQM0br9xA==",
       "requires": {
         "neo-async": "^2.6.0",
         "optimist": "^0.6.1",