diff --git a/package-lock.json b/package-lock.json
index 05cb853a..564447aa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -186,9 +186,9 @@
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-      "integrity": "sha1-6pDHoFrs6vOjdtLA9qeEIXJ9aHk="
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@@ -232,9 +232,9 @@
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-      "integrity": "sha1-GtytfXDXqRxCbXVvHrZWbDvmy88="
+      "version": "10.2.1",
+      "resolved": "https://registry.npmjs.org/decimal.js/-/decimal.js-10.2.1.tgz",
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@@ -343,6 +343,11 @@
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+      "resolved": "https://registry.npmjs.org/escape-latex/-/escape-latex-1.2.0.tgz",
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@@ -518,9 +523,9 @@
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-      "integrity": "sha1-c5dOL4tR73CVNtYkzJB4Liu2EnQ="
+      "version": "4.0.13",
+      "resolved": "https://registry.npmjs.org/fraction.js/-/fraction.js-4.0.13.tgz",
+      "integrity": "sha512-E1fz2Xs9ltlUp+qbiyx9wmt2n9dRzPsS11Jtdb8D2o+cC7wr9xkkKsVKJuBX0ST+LVS+LhLO+SbLJNtfWcJvXA=="
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@@ -743,6 +748,11 @@
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+      "resolved": "https://registry.npmjs.org/javascript-natural-sort/-/javascript-natural-sort-0.7.1.tgz",
+      "integrity": "sha1-+eIwPUUH9tdDVac2ZNFED7Wg71k="
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@@ -803,16 +813,18 @@
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-      "integrity": "sha1-0spyPX6SVMxY0UIaWmHYz6yP9kI=",
+      "version": "7.5.1",
+      "resolved": "https://registry.npmjs.org/mathjs/-/mathjs-7.5.1.tgz",
+      "integrity": "sha512-H2q/Dq0qxBLMw+G84SSXmGqo/znihuxviGgAQwAcyeFLwK2HksvSGNx4f3dllZF51bWOnu2op60VZxH2Sb51Pw==",
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-        "decimal.js": "7.1.1",
-        "fraction.js": "4.0.0",
-        "seed-random": "2.2.0",
-        "tiny-emitter": "1.0.2",
-        "typed-function": "0.10.5"
+        "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",
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@@ -1174,15 +1186,6 @@
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-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
-      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
-      "dev": true,
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@@ -1194,6 +1197,15 @@
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+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
+      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
+      "dev": true,
+      "requires": {
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@@ -1281,9 +1293,9 @@
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-      "integrity": "sha1-jklHDT9V+J4kchA2imu5+1GqFgE="
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-2.1.0.tgz",
+      "integrity": "sha512-NB6Dk1A9xgQPMoGqC5CVXn123gWyte215ONT5Pp5a0yt4nlEoO1ZWeCwpncaekPHXO60i47ihFnZPiRPjRMq4Q=="
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@@ -1301,9 +1313,9 @@
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-      "resolved": "https://registry.npmjs.org/typed-function/-/typed-function-0.10.5.tgz",
-      "integrity": "sha1-Lg8Yq9BlIZ+raUpEamXG0ZgYMsA="
+      "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
index 60103bd6..768dedd6 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "Step by step math solutions",
   "main": "index.js",
   "dependencies": {
-    "mathjs": "3.11.2"
+    "mathjs": "7.5.1"
   },
   "engines": {
     "node": ">=6.0.0"