diff --git a/package-lock.json b/package-lock.json
index 5ee6566..ec630d2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -30,15 +30,172 @@
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-          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
-        }
       }
     },
     "xhr": {
       "version": "2.5.0",
       "resolved": "https://registry.npmjs.org/xhr/-/xhr-2.5.0.tgz",
       "integrity": "sha512-4nlO/14t3BNUZRXIXfXe+3N6w3s1KoxcJUUURctd64BLRe67E4gRwp4PjywtDY72fXpZ1y6Ch0VZQRY/gMPzzQ==",
+      "dev": true,
       "requires": {
         "global": "~4.3.0",
         "is-function": "^1.0.1",
@@ -5349,6 +5683,7 @@
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/xhr-request/-/xhr-request-1.1.0.tgz",
       "integrity": "sha512-Y7qzEaR3FDtL3fP30k9wO/e+FBnBByZeybKOhASsGP30NIkRAAkKD/sCnLvgEfAIEC1rcmK7YG8f4oEnIrrWzA==",
+      "dev": true,
       "requires": {
         "buffer-to-arraybuffer": "^0.0.5",
         "object-assign": "^4.1.1",
@@ -5363,6 +5698,7 @@
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/xhr-request-promise/-/xhr-request-promise-0.1.3.tgz",
       "integrity": "sha512-YUBytBsuwgitWtdRzXDDkWAXzhdGB8bYm0sSzMPZT7Z2MBjMSTHFsyCT1yCRATY+XC69DUrQraRAEgcoCRaIPg==",
+      "dev": true,
       "requires": {
         "xhr-request": "^1.1.0"
       }
@@ -5371,19 +5707,16 @@
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/xhr2-cookies/-/xhr2-cookies-1.1.0.tgz",
       "integrity": "sha1-fXdEnQmZGX8VXLc7I99yUF7YnUg=",
+      "dev": true,
       "requires": {
         "cookiejar": "^2.1.1"
       }
     },
-    "xmlhttprequest": {
-      "version": "1.8.0",
-      "resolved": "https://registry.npmjs.org/xmlhttprequest/-/xmlhttprequest-1.8.0.tgz",
-      "integrity": "sha1-Z/4HXFwk/vOfnWX197f+dRcZaPw="
-    },
     "xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
-      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+      "dev": true
     },
     "y18n": {
       "version": "4.0.0",
@@ -5393,12 +5726,14 @@
     "yaeti": {
       "version": "0.0.6",
       "resolved": "https://registry.npmjs.org/yaeti/-/yaeti-0.0.6.tgz",
-      "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc="
+      "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc=",
+      "dev": true
     },
     "yallist": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
-      "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g=="
+      "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==",
+      "dev": true
     },
     "yargs": {
       "version": "15.4.1",
@@ -5585,15 +5920,6 @@
           }
         }
       }
-    },
-    "yauzl": {
-      "version": "2.10.0",
-      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
-      "integrity": "sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=",
-      "requires": {
-        "buffer-crc32": "~0.2.3",
-        "fd-slicer": "~1.1.0"
-      }
     }
   }
 }
diff --git a/package.json b/package.json
index 908d458..f27668e 100644
--- a/package.json
+++ b/package.json
@@ -27,12 +27,12 @@
     "blake-hash": "^1.1.0",
     "blake2b": "^2.1.3",
     "circom": "0.5.21",
-    "ffjavascript": "0.1.0",
-    "web3": "^1.2.6"
+    "ffjavascript": "0.1.0"
   },
   "devDependencies": {
     "eslint": "^6.8.0",
-    "ganache-cli": "^6.9.1",
-    "mocha": "^7.1.1"
+    "ganache-cli": "^6.10.1",
+    "mocha": "^7.1.1",
+    "web3": "^1.2.11"
   }
 }