diff --git a/verifier/package-lock.json b/verifier/package-lock.json
index 639da66..26b25cf 100644
--- a/verifier/package-lock.json
+++ b/verifier/package-lock.json
@@ -5,31 +5,37 @@
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-      "resolved": "https://registry.npmjs.org/@hapi/address/-/address-2.0.0.tgz",
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+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/@hapi/address/-/address-2.1.4.tgz",
+      "integrity": "sha512-QD1PhQk+s31P1ixsX0H0Suoupp3VMXzIVMSwobR3F3MSUO2YCV0B7xqLcUw/Bh8yuvd3LhpyqLQWTNcRmp6IdQ=="
+    },
+    "@hapi/bourne": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/@hapi/bourne/-/bourne-1.3.2.tgz",
+      "integrity": "sha512-1dVNHT76Uu5N3eJNTYcvxee+jzX4Z9lfciqRRHCU27ihbUcYi+iSc2iml5Ke1LXe1SyJCLA0+14Jh4tXJgOppA=="
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-      "resolved": "https://registry.npmjs.org/@hapi/hoek/-/hoek-6.2.1.tgz",
-      "integrity": "sha512-+ryw4GU9pjr1uT6lBuErHJg3NYqzwJTvZ75nKuJijEzpd00Uqi6oiawTGDDf5Hl0zWmI7qHfOtaqB0kpQZJQzA=="
+      "version": "8.5.1",
+      "resolved": "https://registry.npmjs.org/@hapi/hoek/-/hoek-8.5.1.tgz",
+      "integrity": "sha512-yN7kbciD87WzLGc5539Tn0sApjyiGHAJgKvG9W8C7O+6c7qmoQMfVs0W4bX17eqz6C78QJqqFrtgdK5EWf6Qow=="
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-      "resolved": "https://registry.npmjs.org/@hapi/joi/-/joi-15.0.0.tgz",
-      "integrity": "sha512-pLCfcSeT26g59jEKZntmzlqe19dRMDNxCFKGD4CriF8+9FAD3Mq1aWNuKIFpKpX+u3x8lxLKXolDwk0gYl3b2w==",
+      "version": "15.1.1",
+      "resolved": "https://registry.npmjs.org/@hapi/joi/-/joi-15.1.1.tgz",
+      "integrity": "sha512-entf8ZMOK8sc+8YfeOlM8pCfg3b5+WZIKBfUaaJT8UsjAAPjartzxIYm3TIbjvA4u+u++KbcXD38k682nVHDAQ==",
       "requires": {
         "@hapi/address": "2.x.x",
-        "@hapi/hoek": "6.x.x",
+        "@hapi/bourne": "1.x.x",
+        "@hapi/hoek": "8.x.x",
         "@hapi/topo": "3.x.x"
       }
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     "@hapi/topo": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/@hapi/topo/-/topo-3.1.0.tgz",
-      "integrity": "sha512-gZDI/eXOIk8kP2PkUKjWu9RW8GGVd2Hkgjxyr/S7Z+JF+0mr7bAlbw+DkTRxnD580o8Kqxlnba9wvqp5aOHBww==",
+      "version": "3.1.6",
+      "resolved": "https://registry.npmjs.org/@hapi/topo/-/topo-3.1.6.tgz",
+      "integrity": "sha512-tAag0jEcjwH+P2quUfipd7liWCNX2F8NvYjQp2wtInsZxnMlypdw0FtAOLxtvvkO+GSRRbmNi8m/5y42PQJYCQ==",
       "requires": {
-        "@hapi/hoek": "6.x.x"
+        "@hapi/hoek": "^8.3.0"
       }
     },
     "@koa/cors": {
@@ -40,6 +46,29 @@
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       }
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+    "@koa/router": {
+      "version": "8.0.2",
+      "resolved": "https://registry.npmjs.org/@koa/router/-/router-8.0.2.tgz",
+      "integrity": "sha512-7Wa8yXBmz9HjmZOr+xfMVuxFPNObdkiQFBiwF9SQ8zFqHykwBHcJA/mLqqxU2NKoeXRPBKUOPeOjwgR+gyadcA==",
+      "requires": {
+        "debug": "^3.1.0",
+        "http-errors": "^1.3.1",
+        "koa-compose": "^3.0.0",
+        "methods": "^1.0.1",
+        "path-to-regexp": "^1.1.1",
+        "urijs": "^1.19.0"
+      },
+      "dependencies": {
+        "koa-compose": {
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/koa-compose/-/koa-compose-3.2.1.tgz",
+          "integrity": "sha512-8gen2cvKHIZ35eDEik5WOo8zbVp9t4cP8p4hW4uE55waxolLRexKKrqfCpwhGVppnB40jWeF8bZeTVg99eZgPw==",
+          "requires": {
+            "any-promise": "^1.1.0"
+          }
+        }
+      }
+    },
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@@ -325,7 +354,7 @@
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-      "integrity": "sha1-M7ega58edFPWBBuCl0SB0hUq6kI="
+      "integrity": "sha512-FQSWhFQZmddoqWkwPMFeR5hJo9waZE796MuO7b0poStaPrm0Qr2em9FT4/TF1+0rOA1dRFabX+88rdX8YHxDTA=="
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@@ -673,7 +702,7 @@
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-      "integrity": "sha1-G39Ln1kfHo+DZwQBYANFoCiHQ18="
+      "integrity": "sha512-3Pe/CF1Nn94hyhIYpjtiLhdCoEoz0DqQ+988E9gmeEdQZlojxnOb74wctFyuwWQHzqyf9X7C7MG8juUpqBJT8w=="
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@@ -1617,9 +1646,9 @@
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-      "integrity": "sha1-2uRqnXj74lKSJYzB54CkHZXAN4I="
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/flatten/-/flatten-1.0.3.tgz",
+      "integrity": "sha512-dVsPA/UwQ8+2uoFe5GHtiBMu48dWLTdsuEd7CKGlZlD78r1TTWBvDuFaFGKCo/ZfEr95Uk56vZoX86OsHkUeIg=="
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@@ -1742,7 +1771,8 @@
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-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -1763,12 +1793,14 @@
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           "version": "1.0.0",
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-          "dev": true
+          "dev": true,
+          "optional": true
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           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -1783,17 +1815,20 @@
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           "version": "1.1.0",
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-          "dev": true
+          "dev": true,
+          "optional": true
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           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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         "core-util-is": {
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@@ -1910,7 +1945,8 @@
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           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -1922,6 +1958,7 @@
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           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -1936,6 +1973,7 @@
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@@ -1943,12 +1981,14 @@
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           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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           "bundled": true,
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@@ -1967,6 +2007,7 @@
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@@ -2047,7 +2088,8 @@
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@@ -2059,6 +2101,7 @@
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@@ -2144,7 +2187,8 @@
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@@ -2180,6 +2224,7 @@
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@@ -2199,6 +2244,7 @@
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+          "optional": true,
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@@ -2242,12 +2288,14 @@
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           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
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@@ -2558,7 +2606,7 @@
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-      "integrity": "sha1-i0F+R8KPklpFEz2RTKH9OJEH8w8="
+      "integrity": "sha512-m3xv4hJYR2oXw4o4Y5l6P5P16WYmazYof+el6Al3f+YlggGj6qT9kImBAnzDelRALnP5d3h4jGBPKzYCizjZZw=="
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@@ -2703,7 +2751,7 @@
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-      "integrity": "sha1-8na/KgCDVxq9Aa3UfNTaEFpkzhM="
+      "integrity": "sha512-KB/QRnp3FOjYZzP7XnsitrYvw9c3UpMlIKeKAq1FfSIotGKrMfy5lCqlskANC78tV9kc7gM9g7Il8MmO6uSWtQ=="
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@@ -2845,7 +2893,7 @@
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-      "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8="
+      "integrity": "sha512-D2S+3GLxWH+uhrNEcoh/fnmYeP8E8/zHl644d/jdA0g2uyXvy3sb0qxotE+ne0LtccHknQzWwZEzhak7oJ0COQ=="
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@@ -2998,19 +3046,19 @@
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-        "@hapi/joi": "15.0.0",
+        "@hapi/joi": "15.1.1",
+        "@koa/router": "8.0.2",
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         "debug": "4.1.1",
         "delegates": "1.0.0",
-        "flatten": "1.0.2",
+        "flatten": "1.0.3",
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@@ -3024,32 +3072,9 @@
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-          "integrity": "sha1-qFzLQLfZhtjlo0Wzoazo6rz1Tec=",
-          "requires": {
-            "any-promise": "^1.1.0"
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@@ -3551,9 +3576,9 @@
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-      "integrity": "sha1-Wf3g9DW62suhA6hOnTvGTpa5k30=",
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-1.8.0.tgz",
+      "integrity": "sha512-n43JRhlUKUAlibEJhPeir1ncUID16QnEjNpwzNdO3Lm4ywrBpBZ5oLD0I6br9evr1Y9JTqwRtAh7JLoOzAQdVA==",
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@@ -4096,7 +4121,7 @@
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-      "integrity": "sha1-CzpmK10Ewxd7GSa+qCsD+Dei70E="
+      "integrity": "sha512-VZBmZP8WU3sMOZm1bdgTadsQbcscK0UM8oKxKVBs4XAhUo2Xxzm/OFMGBkPusxw9xL3Uy8LrzEqGqJhclsr0yA=="
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@@ -4293,7 +4318,7 @@
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-      "integrity": "sha1-gIudDlb8Jz2Am6VzOOkpkZoanxo="
+      "integrity": "sha512-jos8u++JKm0ARcSUTAZXOVC0mSox7Bhn6sBgty73P1f3JGf7yG2clTbBNHUdde/kdvP2FESam+vM6l8jBrNxHA=="
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@@ -4775,9 +4800,9 @@
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-      "resolved": "https://registry.npmjs.org/urijs/-/urijs-1.19.1.tgz",
-      "integrity": "sha512-xVrGVi94ueCJNrBSTjWqjvtgvl3cyOTThp2zaMaFNGp3F542TR6sM3f2o8RqZl+AwteClSVmoCyt0ka4RjQOQg=="
+      "version": "1.19.11",
+      "resolved": "https://registry.npmjs.org/urijs/-/urijs-1.19.11.tgz",
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@@ -5114,6 +5139,26 @@
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         "websocket": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2"
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+      "dependencies": {
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+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "websocket": {
+          "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
+          "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
+          "requires": {
+            "debug": "^2.2.0",
+            "nan": "^2.3.3",
+            "typedarray-to-buffer": "^3.1.2",
+            "yaeti": "^0.0.6"
+          }
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     },
     "web3-shh": {
@@ -5148,26 +5193,6 @@
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-    "websocket": {
-      "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
-      "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
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@@ -5302,7 +5327,8 @@
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-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/axios/-/axios-0.18.0.tgz",
+          "integrity": "sha512-14hgP2oTu6SPu+26Ofye6Se8u5Mmjc07a0ACHTJ5POKFU1Mtxz2IxSvaWy1O+QnbSa8XHy1gYz2E1l+G26XJdA==",
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@@ -5310,25 +5336,29 @@
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+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
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           "requires": {
             "ms": "^2.1.1"
           }
         },
         "follow-redirects": {
           "version": "1.7.0",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.7.0.tgz",
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             "debug": "^3.2.6"
           }
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         "is-buffer": {
           "version": "1.1.6",
-          "bundled": true
+          "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-1.1.6.tgz",
+          "integrity": "sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w=="
         },
         "ms": {
           "version": "2.1.1",
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+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
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diff --git a/verifier/package.json b/verifier/package.json
index 264292e..efa65f0 100644
--- a/verifier/package.json
+++ b/verifier/package.json
@@ -10,7 +10,7 @@
     "@koa/cors": "^3.0.0",
     "axios": "^0.18.0",
     "koa": "^2.7.0",
-    "koa-joi-router": "^6.0.0",
+    "koa-joi-router": "^6.0.2",
     "web3": "1.0.0-beta.36",
     "zkp": "file:../zkp"
   },