diff --git a/package-lock.json b/package-lock.json
index 87ea3e4..7a5247c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2871,7 +2871,7 @@
                 "string-length": "2.0.0",
                 "strip-ansi": "4.0.0",
                 "which": "1.3.0",
-                "yargs": "11.0.0"
+                "yargs": "11.1.1"
               }
             },
             "jest-config": {
@@ -3469,7 +3469,7 @@
             "slash": "1.0.0",
             "strip-bom": "3.0.0",
             "write-file-atomic": "2.3.0",
-            "yargs": "11.0.0"
+            "yargs": "11.1.1"
           },
           "dependencies": {
             "ansi-regex": {
@@ -3907,7 +3907,7 @@
           }
         },
         "mem": {
-          "version": "1.1.0",
+          "version": "4.0.0",
           "bundled": true,
           "requires": {
             "mimic-fn": "1.2.0"
@@ -4253,12 +4253,12 @@
           "bundled": true
         },
         "os-locale": {
-          "version": "2.1.0",
+          "version": "3.0.1",
           "bundled": true,
           "requires": {
             "execa": "0.7.0",
             "lcid": "1.0.0",
-            "mem": "1.1.0"
+            "mem": "4.0.0"
           }
         },
         "os-tmpdir": {
@@ -6161,7 +6161,7 @@
             "fs-extra": "4.0.3",
             "jest-config": "22.4.3",
             "pkg-dir": "2.0.0",
-            "yargs": "11.0.0"
+            "yargs": "11.1.1"
           },
           "dependencies": {
             "camelcase": {
@@ -6178,14 +6178,14 @@
               }
             },
             "yargs": {
-              "version": "11.0.0",
+              "version": "11.1.1",
               "bundled": true,
               "requires": {
                 "cliui": "4.0.0",
                 "decamelize": "1.2.0",
                 "find-up": "2.1.0",
                 "get-caller-file": "1.0.2",
-                "os-locale": "2.1.0",
+                "os-locale": "3.0.1",
                 "require-directory": "2.1.1",
                 "require-main-filename": "1.0.1",
                 "set-blocking": "2.0.0",
@@ -6585,14 +6585,14 @@
           "bundled": true
         },
         "yargs": {
-          "version": "11.0.0",
+          "version": "11.1.1",
           "bundled": true,
           "requires": {
             "cliui": "4.1.0",
             "decamelize": "1.2.0",
             "find-up": "2.1.0",
             "get-caller-file": "1.0.2",
-            "os-locale": "2.1.0",
+            "os-locale": "3.0.1",
             "require-directory": "2.1.1",
             "require-main-filename": "1.0.1",
             "set-blocking": "2.0.0",
@@ -10081,19 +10081,15 @@
       }
     },
     "jest": {
-      "version": "22.4.3",
-      "resolved": "https://registry.npmjs.org/jest/-/jest-22.4.3.tgz",
-      "integrity": "sha512-FFCdU/pXOEASfHxFDOWUysI/+FFoqiXJADEIXgDKuZyqSmBD3tZ4BEGH7+M79v7czj7bbkhwtd2LaEDcJiM/GQ==",
+      "version": "23.0.0",
       "dev": true,
       "requires": {
         "import-local": "1.0.0",
-        "jest-cli": "22.4.4"
+        "jest-cli": "23.0.0"
       },
       "dependencies": {
         "jest-cli": {
-          "version": "22.4.4",
-          "resolved": "https://registry.npmjs.org/jest-cli/-/jest-cli-22.4.4.tgz",
-          "integrity": "sha512-I9dsgkeyjVEEZj9wrGrqlH+8OlNob9Iptyl+6L5+ToOLJmHm4JwOPatin1b2Bzp5R5YRQJ+oiedx7o1H7wJzhA==",
+          "version": "23.0.0",
           "dev": true,
           "requires": {
             "ansi-escapes": "3.1.0",
@@ -10115,8 +10111,8 @@
             "jest-message-util": "22.4.3",
             "jest-regex-util": "22.4.3",
             "jest-resolve-dependencies": "22.4.3",
-            "jest-runner": "22.4.4",
-            "jest-runtime": "22.4.4",
+            "jest-runner": "23.0.0",
+            "jest-runtime": "23.0.0",
             "jest-snapshot": "22.4.3",
             "jest-util": "22.4.3",
             "jest-validate": "22.4.4",
@@ -10129,7 +10125,7 @@
             "string-length": "2.0.0",
             "strip-ansi": "4.0.0",
             "which": "1.3.1",
-            "yargs": "10.1.2"
+            "yargs": "11.1.1"
           }
         }
       }
@@ -10309,9 +10305,7 @@
       }
     },
     "jest-runner": {
-      "version": "22.4.4",
-      "resolved": "https://registry.npmjs.org/jest-runner/-/jest-runner-22.4.4.tgz",
-      "integrity": "sha512-5S/OpB51igQW9xnkM5Tgd/7ZjiAuIoiJAVtvVTBcEBiXBIFzWM3BAMPBM19FX68gRV0KWyFuGKj0EY3M3aceeQ==",
+      "version": "23.0.0",
       "dev": true,
       "requires": {
         "exit": "0.1.2",
@@ -10321,16 +10315,14 @@
         "jest-jasmine2": "22.4.4",
         "jest-leak-detector": "22.4.3",
         "jest-message-util": "22.4.3",
-        "jest-runtime": "22.4.4",
+        "jest-runtime": "23.0.0",
         "jest-util": "22.4.3",
         "jest-worker": "22.4.3",
         "throat": "4.1.0"
       }
     },
     "jest-runtime": {
-      "version": "22.4.4",
-      "resolved": "https://registry.npmjs.org/jest-runtime/-/jest-runtime-22.4.4.tgz",
-      "integrity": "sha512-WRTj9m///npte1YjuphCYX7GRY/c2YvJImU9t7qOwFcqHr4YMzmX6evP/3Sehz5DKW2Vi8ONYPCFWe36JVXxfw==",
+      "version": "23.0.0",
       "dev": true,
       "requires": {
         "babel-core": "6.26.3",
@@ -10352,7 +10344,7 @@
         "slash": "1.0.0",
         "strip-bom": "3.0.0",
         "write-file-atomic": "2.3.0",
-        "yargs": "10.1.2"
+        "yargs": "11.1.1"
       }
     },
     "jest-serializer": {
@@ -10698,9 +10690,7 @@
       "dev": true
     },
     "mem": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/mem/-/mem-1.1.0.tgz",
-      "integrity": "sha1-Xt1StIXKHZAP5kiVUFOZoN+kX3Y=",
+      "version": "4.0.0",
       "dev": true,
       "requires": {
         "mimic-fn": "1.2.0"
@@ -11120,14 +11110,12 @@
       "dev": true
     },
     "os-locale": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-2.1.0.tgz",
-      "integrity": "sha512-3sslG3zJbEYcaC4YVAvDorjGxc7tv6KVATnLPZONiljsUncvihe9BQoVCEs0RZ1kmf4Hk9OBqlZfJZWI4GanKA==",
+      "version": "3.0.1",
       "dev": true,
       "requires": {
         "execa": "0.7.0",
         "lcid": "1.0.0",
-        "mem": "1.1.0"
+        "mem": "4.0.0"
       }
     },
     "os-tmpdir": {
@@ -13064,7 +13052,7 @@
         "fs-extra": "4.0.3",
         "jest-config": "22.4.4",
         "pkg-dir": "2.0.0",
-        "yargs": "11.1.0"
+        "yargs": "11.1.1"
       },
       "dependencies": {
         "camelcase": {
@@ -13085,16 +13073,14 @@
           }
         },
         "yargs": {
-          "version": "11.1.0",
-          "resolved": "https://registry.npmjs.org/yargs/-/yargs-11.1.0.tgz",
-          "integrity": "sha512-NwW69J42EsCSanF8kyn5upxvjp5ds+t3+udGBeTbFnERA+lF541DDpMawzo4z6W/QrzNM18D+BPMiOBibnFV5A==",
+          "version": "11.1.1",
           "dev": true,
           "requires": {
             "cliui": "4.1.0",
             "decamelize": "1.2.0",
             "find-up": "2.1.0",
             "get-caller-file": "1.0.2",
-            "os-locale": "2.1.0",
+            "os-locale": "3.0.1",
             "require-directory": "2.1.1",
             "require-main-filename": "1.0.1",
             "set-blocking": "2.0.0",
@@ -13561,16 +13547,14 @@
       "dev": true
     },
     "yargs": {
-      "version": "10.1.2",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-10.1.2.tgz",
-      "integrity": "sha512-ivSoxqBGYOqQVruxD35+EyCFDYNEFL/Uo6FcOnz+9xZdZzK0Zzw4r4KhbrME1Oo2gOggwJod2MnsdamSG7H9ig==",
+      "version": "11.1.1",
       "dev": true,
       "requires": {
         "cliui": "4.1.0",
         "decamelize": "1.2.0",
         "find-up": "2.1.0",
         "get-caller-file": "1.0.2",
-        "os-locale": "2.1.0",
+        "os-locale": "3.0.1",
         "require-directory": "2.1.1",
         "require-main-filename": "1.0.1",
         "set-blocking": "2.0.0",
@@ -13617,4 +13601,4 @@
       "dev": true
     }
   }
-}
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index 2940064..521587e 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "@unibeautify/beautifier-prettydiff": "^0.5.3",
     "asciichart": "^1.5.7",
     "eslint": "^5.1.0",
-    "jest": "^22.4.3",
+    "jest": "^23.0.0",
     "js-beautify": "^1.7.5",
     "prettier": "^1.13.7",
     "prettydiff": "^99.0.1",