diff --git a/package-lock.json b/package-lock.json
index 9fa104f..3c30d30 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3665,7 +3665,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -3686,12 +3687,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -3706,17 +3709,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -3833,7 +3839,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -3845,6 +3852,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -3859,6 +3867,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -3866,12 +3875,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.1",
             "yallist": "^3.0.0"
@@ -3890,6 +3901,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -3970,7 +3982,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -3982,6 +3995,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -4067,7 +4081,8 @@
         "safe-buffer": {
           "version": "5.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -4103,6 +4118,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -4122,6 +4138,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -4165,12 +4182,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -10668,9 +10687,12 @@
       "dev": true
     },
     "ow": {
-      "version": "0.10.0",
-      "resolved": "https://registry.npmjs.org/ow/-/ow-0.10.0.tgz",
-      "integrity": "sha512-bBc51JQ7LM8HXhihEQZyhs+ZWTIdm20riI6y3gLAdPkzEyAHH6tuGV7rAQvfxDjqWqj7Z/slv0AEL2Gi3lkN0Q=="
+      "version": "0.19.0",
+      "resolved": "https://registry.npmjs.org/ow/-/ow-0.19.0.tgz",
+      "integrity": "sha512-xv/vJrp5Pnt4kOVxwR9QniIzr4Ktd5LfnayoUhPYJbW2A6EZ6rPKWJLYySOxU4wjghEn0eg5/GFTAlnl3HEVcA==",
+      "requires": {
+        "type-fest": "^0.18.0"
+      }
     },
     "p-defer": {
       "version": "1.0.0",
@@ -12562,6 +12584,11 @@
       "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
       "dev": true
     },
+    "type-fest": {
+      "version": "0.18.1",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.18.1.tgz",
+      "integrity": "sha512-OIAYXk8+ISY+qTOwkHtKqzAuxchoMiD9Udx+FSGQDuiRR+PJKJHc2NJAXlbhkGwTt/4/nKZxELY1w3ReWOL8mw=="
+    },
     "type-is": {
       "version": "1.6.16",
       "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.16.tgz",
diff --git a/package.json b/package.json
index 13c481b..93ed33c 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "axios": "^0.18.0",
     "bluebird": "^3.5.2",
     "lodash": "^4.17.11",
-    "ow": "^0.10.0",
+    "ow": "^0.19.0",
     "steem": "^0.7.2",
     "steem-efficient-stream": "^0.2.1",
     "universe-log": "^1.3.0"