diff --git a/package-lock.json b/package-lock.json
index 43a5c7d..f6b4c94 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -279,7 +279,7 @@
       "dependencies": {
         "acorn": {
           "version": "3.3.0",
-          "resolved": "http://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
           "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
           "dev": true
         }
@@ -1121,7 +1121,7 @@
     },
     "chalk": {
       "version": "1.1.3",
-      "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
       "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
       "requires": {
         "ansi-styles": "^2.2.1",
@@ -2188,7 +2188,7 @@
       "dependencies": {
         "combined-stream": {
           "version": "1.0.6",
-          "resolved": "http://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
+          "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
           "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
           "dev": true,
           "requires": {
@@ -3561,7 +3561,7 @@
     },
     "jsonfile": {
       "version": "2.4.0",
-      "resolved": "http://registry.npmjs.org/jsonfile/-/jsonfile-2.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-2.4.0.tgz",
       "integrity": "sha1-NzaitCi4e72gzIO1P6PWM6NcKug=",
       "requires": {
         "graceful-fs": "^4.1.6"
@@ -3643,7 +3643,7 @@
     },
     "load-json-file": {
       "version": "1.1.0",
-      "resolved": "http://registry.npmjs.org/load-json-file/-/load-json-file-1.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-1.1.0.tgz",
       "integrity": "sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=",
       "requires": {
         "graceful-fs": "^4.1.2",
@@ -3672,9 +3672,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.11",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-      "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg=="
+      "version": "4.17.13",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.13.tgz",
+      "integrity": "sha512-vm3/XWXfWtRua0FkUyEHBZy8kCPjErNBT9fJx8Zvs+U6zjqPbTUOpkaoum3O5uiA8sm+yNMHXfYkTUHFoMxFNA=="
     },
     "lodash.assign": {
       "version": "4.2.0",
@@ -4238,7 +4238,7 @@
     },
     "os-locale": {
       "version": "1.4.0",
-      "resolved": "http://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
       "integrity": "sha1-IPnxeuKe00XoveWDsT0gCYA8FNk=",
       "requires": {
         "lcid": "^1.0.0"
@@ -6489,7 +6489,7 @@
     },
     "yargs": {
       "version": "4.8.1",
-      "resolved": "http://registry.npmjs.org/yargs/-/yargs-4.8.1.tgz",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-4.8.1.tgz",
       "integrity": "sha1-wMQpJMpKqmsObaFznfshZDn53cA=",
       "requires": {
         "cliui": "^3.2.0",
diff --git a/package.json b/package.json
index 8184d87..874f9b5 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "babel-register": "^6.26.0",
     "bignumber.js": "^4.0.4",
     "ethereumjs-tx": "^1.3.3",
-    "lodash": "^4.17.4",
+    "lodash": "^4.17.13",
     "openzeppelin-solidity": "1.10.0",
     "truffle": "^4.1.11",
     "truffle-artifactor": "^3.0.8",