diff --git a/package-lock.json b/package-lock.json
index 77bcf2b5..4588d300 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1331,6 +1331,15 @@
       "integrity": "sha1-r6uWJikQp/M8GaV3WCXGnzTjUMo=",
       "dev": true
     },
+    "canvas": {
+      "version": "1.6.13",
+      "resolved": "https://registry.npmjs.org/canvas/-/canvas-1.6.13.tgz",
+      "integrity": "sha512-XAfzfEOHZ3JIPjEV+WSI6PpISgUta3dgmndWbsajotz+0TQOX/jDpp2kawjRERatOGv9sMMzk5auB3GKEKA6hg==",
+      "dev": true,
+      "requires": {
+        "nan": "^2.10.0"
+      }
+    },
     "caseless": {
       "version": "0.12.0",
       "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
@@ -3140,8 +3149,7 @@
       "version": "2.14.2",
       "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.2.tgz",
       "integrity": "sha512-M2ufzIiINKCuDfBSAUr1vWQ+vuVcA9kqx8JJUsbQi6yf1uGRyb7HfpdfUr5qLXf3B/t8dPvcjhKMmlfnP47EzQ==",
-      "dev": true,
-      "optional": true
+      "dev": true
     },
     "natural-compare": {
       "version": "1.4.0",
@@ -6638,9 +6646,9 @@
       "dev": true
     },
     "shelljs": {
-      "version": "0.8.4",
-      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.4.tgz",
-      "integrity": "sha512-7gk3UZ9kOfPLIAbslLzyWeGiEqx9e3rxwZM0KE6EL8GlGwjym9Mrlx5/p33bWTu9YG6vcS4MBxYZDHYr5lr8BQ==",
+      "version": "0.8.5",
+      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.5.tgz",
+      "integrity": "sha512-TiwcRcrkhHvbrZbnRcFYMLl30Dfov3HKqzp5tO5b4pt6G/SezKcYhmDg15zXVBswHmctSAQKznqNW2LO5tTDow==",
       "dev": true,
       "requires": {
         "glob": "^7.0.0",