Update some packages

package-lock.json

@@ -4066,8 +4066,7 @@
     "nan": {
       "version": "2.10.0",
       "resolved": "https://registry.npmjs.org/nan/-/nan-2.10.0.tgz",
-      "integrity": "sha512-bAdJv7fBLhWC+/Bls0Oza+mvTaNQtP+1RyhhhvD95pgUJz6XM5IzgmxOkItJ9tkoCiplvAnXI1tNmmUD/eScyA==",
-      "optional": true
+      "integrity": "sha512-bAdJv7fBLhWC+/Bls0Oza+mvTaNQtP+1RyhhhvD95pgUJz6XM5IzgmxOkItJ9tkoCiplvAnXI1tNmmUD/eScyA=="
     },
     "nanomatch": {
       "version": "1.2.13",
@@ -4466,18 +4465,11 @@
       "dev": true
     },
     "pi-spi": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/pi-spi/-/pi-spi-1.0.2.tgz",
-      "integrity": "sha1-EGGeoufh+EJbiFq++2J8JzkDDcY=",
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/pi-spi/-/pi-spi-1.0.3.tgz",
+      "integrity": "sha512-dMEJTxWKRj9/pIys0w5d/k5rSRrP1NbOEz2oUqCxoliBlcPZPwaPGstTiV4vCda8Kb0ZYzfWVnUjA9M/HpABBA==",
       "requires": {
         "nan": "^2.3.5"
-      },
-      "dependencies": {
-        "nan": {
-          "version": "2.8.0",
-          "resolved": "https://registry.npmjs.org/nan/-/nan-2.8.0.tgz",
-          "integrity": "sha1-7XFfP+neArV6XmJS2QqWZ14fCFo="
-        }
       }
     },
     "pidusage": {
@@ -6447,9 +6439,9 @@
       }
     },
     "vm2": {
-      "version": "3.6.1",
-      "resolved": "https://registry.npmjs.org/vm2/-/vm2-3.6.1.tgz",
-      "integrity": "sha512-bdNTlSat0QCaMEG0u53AaEqK99LCnJPx11FmnG2pvTznkxSIcFOjnaN3jwznxDohYP52wD54wQw+vvAmtYsAXg=="
+      "version": "3.6.4",
+      "resolved": "https://registry.npmjs.org/vm2/-/vm2-3.6.4.tgz",
+      "integrity": "sha512-LFj8YL9DyGn+fwgG2J+10HyuIpdIRHHN8/3NwKoc2e2t2Pr0aXV/2OSODceDR7NP7VNr8RTqmxHRYcwbNvpbwg=="
     },
     "w3c-hr-time": {
       "version": "1.0.1",

package.json

@@ -9,9 +9,9 @@
   "dependencies": {
     "jpeg-js": "^0.3.4",
     "mjpeg-server": "^0.3.0",
-    "pi-spi": "^1.0.2",
+    "pi-spi": "^1.0.3",
     "restify": "^6.4.0",
-    "vm2": "^3.6.1"
+    "vm2": "^3.6.4"
   },
   "devDependencies": {
     "eslint": "^4.19.1",