diff --git a/package-lock.json b/package-lock.json
index 1a13203..9a6d5d1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -149,18 +149,18 @@
       "dev": true
     },
     "@types/i18next-node-fs-backend": {
-      "version": "0.0.29",
-      "resolved": "https://registry.npmjs.org/@types/i18next-node-fs-backend/-/i18next-node-fs-backend-0.0.29.tgz",
-      "integrity": "sha512-FCf1weudPeXpSY99AR2GRzI89MjuhFK3FauiFBRGTUKQtrDngiBD8pM9Vyw8BPxikuO96AKZf2sKrlfd6ox4Aw==",
+      "version": "0.0.30",
+      "resolved": "https://registry.npmjs.org/@types/i18next-node-fs-backend/-/i18next-node-fs-backend-0.0.30.tgz",
+      "integrity": "sha512-IFiNtEGzQ/Q3t6VcgubDoLCDl2oAuC78VMrwvkLCVZIUq7bqDOUtAIKfvRJM48g+hHj2g6uT7CykVUIew3T2Lw==",
       "dev": true,
       "requires": {
         "@types/i18next": "^2"
       },
       "dependencies": {
         "@types/i18next": {
-          "version": "2.3.40",
-          "resolved": "https://registry.npmjs.org/@types/i18next/-/i18next-2.3.40.tgz",
-          "integrity": "sha512-TvK0V++aUnneloaTtvSu5L1X8RT08pq4GZk2GqeJA4aP54cRRXSQRyO/IhXHj7kRz1nVpBmGcMUKfmXk0jI20w==",
+          "version": "2.3.41",
+          "resolved": "https://registry.npmjs.org/@types/i18next/-/i18next-2.3.41.tgz",
+          "integrity": "sha512-8BLa2+5itmjj3eJI8zbE58Z+I5UEYP7YKHlEn6E4ZJsr8DkpFePtIvt8s0FtBHKPHA1K+HP0LkEgmQRAb9Kbqw==",
           "dev": true
         }
       }
@@ -1583,7 +1583,8 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -1601,11 +1602,13 @@
         },
         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -1618,15 +1621,18 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -1729,7 +1735,8 @@
         },
         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -1739,6 +1746,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -1751,17 +1759,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -1778,6 +1789,7 @@
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -1850,7 +1862,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -1860,6 +1873,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -1935,7 +1949,8 @@
         },
         "safe-buffer": {
           "version": "5.1.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -1965,6 +1980,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -1982,6 +1998,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -2020,11 +2037,13 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
       }
     },
diff --git a/package.json b/package.json
index b458aa5..11699f4 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
   "devDependencies": {
     "@types/chai": "^4.1.7",
     "@types/i18next": "^8.4.6",
-    "@types/i18next-node-fs-backend": "0.0.29",
+    "@types/i18next-node-fs-backend": "0.0.30",
     "@types/lodash": "^4.14.134",
     "@types/mocha": "^2.2.48",
     "@types/node": "^8.10.49",