diff --git a/package-lock.json b/package-lock.json
index e7f45c1..70f27fb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3035,9 +3035,9 @@
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@@ -3170,9 +3170,9 @@
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+      "resolved": "https://registry.npmjs.org/decimal.js/-/decimal.js-10.2.1.tgz",
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@@ -3542,9 +3542,9 @@
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@@ -4543,18 +4543,18 @@
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-      "resolved": "https://registry.npmjs.org/mathjs/-/mathjs-5.10.3.tgz",
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+      "resolved": "https://registry.npmjs.org/mathjs/-/mathjs-7.5.1.tgz",
+      "integrity": "sha512-H2q/Dq0qxBLMw+G84SSXmGqo/znihuxviGgAQwAcyeFLwK2HksvSGNx4f3dllZF51bWOnu2op60VZxH2Sb51Pw==",
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-        "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"
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@@ -5894,9 +5894,9 @@
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+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/typed-function/-/typed-function-2.0.0.tgz",
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diff --git a/package.json b/package.json
index 4f8f409..6372ddc 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
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     "heroku": "^7.29.0",
     "humanize-duration": "^3.15.1",
-    "mathjs": "^5.1.1",
+    "mathjs": "^7.5.1",
     "moment": "^2.22.2",
     "ms": "^2.1.1",
     "neko.js": "^1.9.4",