diff --git a/package-lock.json b/package-lock.json
index 1850faa..6fa75da 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -167,6 +167,7 @@
       "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",
@@ -676,9 +677,9 @@
       "dev": true
     },
     "complex.js": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/complex.js/-/complex.js-2.0.4.tgz",
-      "integrity": "sha512-Syl95HpxUTS0QjwNxencZsKukgh1zdS9uXeXX2Us0pHaqBR6kiZZi0AkZ9VpZFwHJyVIUVzI4EumjWdXP3fy6w=="
+      "version": "2.0.11",
+      "resolved": "https://registry.npmjs.org/complex.js/-/complex.js-2.0.11.tgz",
+      "integrity": "sha512-6IArJLApNtdg1P1dFtn3dnyzoZBEF0MwMnrfF1exSBRpZYoy4yieMkpZhQDC0uwctw48vii0CFVyHfpgZ/DfGw=="
     },
     "concat-map": {
       "version": "0.0.1",
@@ -817,9 +818,9 @@
       "dev": true
     },
     "decimal.js": {
-      "version": "9.0.1",
-      "resolved": "https://registry.npmjs.org/decimal.js/-/decimal.js-9.0.1.tgz",
-      "integrity": "sha512-2h0iKbJwnImBk4TGk7CG1xadoA0g3LDPlQhQzbZ221zvG0p2YVUedbKIPsOZXKZGx6YmZMJKYOalpCMxSdDqTQ=="
+      "version": "10.2.1",
+      "resolved": "https://registry.npmjs.org/decimal.js/-/decimal.js-10.2.1.tgz",
+      "integrity": "sha512-KaL7+6Fw6i5A2XSnsbhm/6B+NuEA7TZ4vqxnd5tXz9sbKtrN9Srj8ab4vKVdK8YAqZO9P1kg45Y6YLoduPf+kw=="
     },
     "deep-eql": {
       "version": "3.0.1",
@@ -947,9 +948,9 @@
       }
     },
     "escape-latex": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/escape-latex/-/escape-latex-1.0.0.tgz",
-      "integrity": "sha512-oogO9Cg3n/4nspF34CTfXFymgI79skca66DebIIQgxVy6qRVqczl/ji2YGAqhFCzpD/oAt/fCWF4qlhMAfda+g=="
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/escape-latex/-/escape-latex-1.2.0.tgz",
+      "integrity": "sha512-nV5aVWW1K0wEiUIEdZ4erkGGH8mDxGyxSeqPzRNtWP7ataw+/olFObw7hujFWlVjNsaDFw5VZ5NzVSIqRgfTiw=="
     },
     "escape-string-regexp": {
       "version": "1.0.5",
@@ -1274,9 +1275,9 @@
       }
     },
     "fraction.js": {
-      "version": "4.0.4",
-      "resolved": "https://registry.npmjs.org/fraction.js/-/fraction.js-4.0.4.tgz",
-      "integrity": "sha512-aK/oGatyYLTtXRHjfEsytX5fieeR5H4s8sLorzcT12taFS+dbMZejnvm9gRa8mZAPwci24ucjq9epDyaq5u8Iw=="
+      "version": "4.0.12",
+      "resolved": "https://registry.npmjs.org/fraction.js/-/fraction.js-4.0.12.tgz",
+      "integrity": "sha512-8Z1K0VTG4hzYY7kA/1sj4/r1/RWLBD3xwReT/RCrUCbzPszjNQCCsy3ktkU/eaEqX3MYa4pY37a52eiBlPMlhA=="
     },
     "fs.realpath": {
       "version": "1.0.0",
@@ -1951,7 +1952,8 @@
       "version": "1.1.6",
       "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-1.1.6.tgz",
       "integrity": "sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "is-builtin-module": {
       "version": "1.0.0",
@@ -2219,6 +2221,7 @@
       "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"
       }
@@ -2386,7 +2389,8 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "loose-envify": {
       "version": "1.3.1",
@@ -2436,18 +2440,18 @@
       "dev": true
     },
     "mathjs": {
-      "version": "4.1.2",
-      "resolved": "https://registry.npmjs.org/mathjs/-/mathjs-4.1.2.tgz",
-      "integrity": "sha512-lZhxnazJNxZOzGyYUm3IdWhUXe8LbVeZEIZadqTR0rh3l58Ip6wWJ/KjL7aTEFCHY3VGgBQ6AVlCcqCQ7po3JA==",
+      "version": "7.5.1",
+      "resolved": "https://registry.npmjs.org/mathjs/-/mathjs-7.5.1.tgz",
+      "integrity": "sha512-H2q/Dq0qxBLMw+G84SSXmGqo/znihuxviGgAQwAcyeFLwK2HksvSGNx4f3dllZF51bWOnu2op60VZxH2Sb51Pw==",
       "requires": {
-        "complex.js": "2.0.4",
-        "decimal.js": "9.0.1",
-        "escape-latex": "1.0.0",
-        "fraction.js": "4.0.4",
-        "javascript-natural-sort": "0.7.1",
-        "seed-random": "2.2.0",
-        "tiny-emitter": "2.0.2",
-        "typed-function": "1.0.3"
+        "complex.js": "^2.0.11",
+        "decimal.js": "^10.2.1",
+        "escape-latex": "^1.2.0",
+        "fraction.js": "^4.0.12",
+        "javascript-natural-sort": "^0.7.1",
+        "seed-random": "^2.2.0",
+        "tiny-emitter": "^2.1.0",
+        "typed-function": "^2.0.0"
       }
     },
     "maxmin": {
@@ -2952,7 +2956,8 @@
       "version": "1.6.1",
       "resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz",
       "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "repeating": {
       "version": "2.0.1",
@@ -3338,9 +3343,9 @@
       "dev": true
     },
     "tiny-emitter": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-2.0.2.tgz",
-      "integrity": "sha512-2NM0auVBGft5tee/OxP4PI3d8WItkDM+fPnaRAVo6xTDI2knbz9eC5ArWGqtGlYqiH3RU5yMpdyTTO7MguC4ow=="
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-2.1.0.tgz",
+      "integrity": "sha512-NB6Dk1A9xgQPMoGqC5CVXn123gWyte215ONT5Pp5a0yt4nlEoO1ZWeCwpncaekPHXO60i47ihFnZPiRPjRMq4Q=="
     },
     "tmp": {
       "version": "0.0.33",
@@ -3419,9 +3424,9 @@
       "dev": true
     },
     "typed-function": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/typed-function/-/typed-function-1.0.3.tgz",
-      "integrity": "sha512-sVC/1pm70oELDFMdYtFXMFqyawenLoaDiAXA3QvOAwKF/WvFNTSJN23cY2lFNL8iP0kh3T0PPKewrboO8XUVGQ=="
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/typed-function/-/typed-function-2.0.0.tgz",
+      "integrity": "sha512-Hhy1Iwo/e4AtLZNK10ewVVcP2UEs408DS35ubP825w/YgSBK1KVLwALvvIG4yX75QJrxjCpcWkzkVRB0BwwYlA=="
     },
     "typedarray": {
       "version": "0.0.6",
diff --git a/package.json b/package.json
index ba1f33c..3241e70 100644
--- a/package.json
+++ b/package.json
@@ -81,6 +81,6 @@
     "test": "test"
   },
   "dependencies": {
-    "mathjs": "^4.1.2"
+    "mathjs": "^7.5.1"
   }
 }