diff --git a/package-lock.json b/package-lock.json
index 3b6ffdd..c3e3529 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -99,6 +99,7 @@
             "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
             "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
             "dev": true,
+            "optional": true,
             "requires": {
                 "kind-of": "^3.0.2",
                 "longest": "^1.0.1",
@@ -3100,7 +3101,8 @@
             "version": "1.0.1",
             "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
             "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-            "dev": true
+            "dev": true,
+            "optional": true
         },
         "loud-rejection": {
             "version": "1.6.0",
@@ -3321,13 +3323,13 @@
             "dependencies": {
                 "commander": {
                     "version": "2.3.0",
-                    "resolved": "http://registry.npmjs.org/commander/-/commander-2.3.0.tgz",
+                    "resolved": "https://registry.npmjs.org/commander/-/commander-2.3.0.tgz",
                     "integrity": "sha1-/UMOiJgy7DU7ms0d4hfBHLPu+HM=",
                     "dev": true
                 },
                 "debug": {
                     "version": "2.2.0",
-                    "resolved": "http://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
+                    "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
                     "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
                     "dev": true,
                     "requires": {
@@ -4840,9 +4842,9 @@
             "dev": true
         },
         "stringstream": {
-            "version": "0.0.5",
-            "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",
-            "integrity": "sha1-TkhM1N5aC7vuGORjB3EKioFiGHg=",
+            "version": "0.0.6",
+            "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.6.tgz",
+            "integrity": "sha512-87GEBAkegbBcweToUrdzf3eLhWNg06FJTebl4BVJz/JgWy8CvEr9dRtX5qWphiynMSQlxxi+QqN0z5T32SLlhA==",
             "dev": true
         },
         "strip-ansi": {