diff --git a/package-lock.json b/package-lock.json
index 081d9b6..1f08dd7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -665,9 +665,9 @@
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-      "resolved": "https://registry.npmjs.org/decimal.js/-/decimal.js-10.2.0.tgz",
-      "integrity": "sha512-vDPw+rDgn3bZe1+F/pyEwb1oMG2XTlRVgAa6B4KccTEpYgF8w6eQllVbQcfIJnZyvzFtFpxnpGtx8dd7DJp/Rw=="
+      "version": "10.2.1",
+      "resolved": "https://registry.npmjs.org/decimal.js/-/decimal.js-10.2.1.tgz",
+      "integrity": "sha512-KaL7+6Fw6i5A2XSnsbhm/6B+NuEA7TZ4vqxnd5tXz9sbKtrN9Srj8ab4vKVdK8YAqZO9P1kg45Y6YLoduPf+kw=="
     },
     "decompress-response": {
       "version": "4.2.1",
@@ -1259,18 +1259,18 @@
       "dev": true
     },
     "mathjs": {
-      "version": "5.10.3",
-      "resolved": "https://registry.npmjs.org/mathjs/-/mathjs-5.10.3.tgz",
-      "integrity": "sha512-ySjg30BC3dYjQm73ILZtwcWzFJde0VU6otkXW/57IjjuYRa3Qaf0Kb8pydEuBZYtqW2OxreAtsricrAmOj3jIw==",
+      "version": "7.5.1",
+      "resolved": "https://registry.npmjs.org/mathjs/-/mathjs-7.5.1.tgz",
+      "integrity": "sha512-H2q/Dq0qxBLMw+G84SSXmGqo/znihuxviGgAQwAcyeFLwK2HksvSGNx4f3dllZF51bWOnu2op60VZxH2Sb51Pw==",
       "requires": {
-        "complex.js": "2.0.11",
-        "decimal.js": "10.2.0",
-        "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": "1.1.0"
+        "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"
       }
     },
     "media-typer": {
@@ -3301,9 +3301,9 @@
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     },
     "typed-function": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/typed-function/-/typed-function-1.1.0.tgz",
-      "integrity": "sha512-TuQzwiT4DDg19beHam3E66oRXhyqlyfgjHB/5fcvsRXbfmWPJfto9B4a0TBdTrQAPGlGmXh/k7iUI+WsObgORA=="
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/typed-function/-/typed-function-2.0.0.tgz",
+      "integrity": "sha512-Hhy1Iwo/e4AtLZNK10ewVVcP2UEs408DS35ubP825w/YgSBK1KVLwALvvIG4yX75QJrxjCpcWkzkVRB0BwwYlA=="
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diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index b948f1f..511fe61
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "json5": "^2.1.0",
     "jsonfile": "^5.0.0",
     "lodash": ">=4.17.12",
-    "mathjs": "^5.3.1",
+    "mathjs": "^7.5.1",
     "minimist": "^1.2.5",
     "mkdirp": "^0.5.1",
     "moment": "^2.22.2",