diff --git a/package-lock.json b/package-lock.json
index b4ae90b..ef04801 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "flightplan",
-  "version": "0.6.18",
+  "version": "0.6.19",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -14,6 +14,7 @@
       "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
+      "optional": true,
       "requires": {
         "kind-of": "3.2.2",
         "longest": "1.0.1",
@@ -25,6 +26,7 @@
           "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
           "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
           "dev": true,
+          "optional": true,
           "requires": {
             "is-buffer": "1.1.6"
           }
@@ -2377,7 +2379,8 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "lru-cache": {
       "version": "2.7.3",
@@ -3148,9 +3151,9 @@
       "dev": true
     },
     "semver": {
-      "version": "5.5.0",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-5.5.0.tgz",
-      "integrity": "sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA=="
+      "version": "6.3.0",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+      "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
     },
     "set-value": {
       "version": "2.0.0",
diff --git a/package.json b/package.json
index 1312f13..a252da8 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "nopt": "^3.0.4",
     "pretty-hrtime": "^1.0.1",
     "prompt": "^0.2.14",
-    "semver": "^5.1.0",
+    "semver": "^6.3.0",
     "ssh2": "^0.4.15",
     "util-extend": "^1.0.1",
     "v8flags": "^2.0.10"