diff --git a/package.json b/package.json
index e7cb750..5ce2519 100644
--- a/package.json
+++ b/package.json
@@ -61,7 +61,7 @@
     "json-stringify-safe": "^5.0.1",
     "jsonata": "^1.6.4",
     "markdown": "^0.5.0",
-    "mathjs": "^7.0.0",
+    "mathjs": "^7.5.1",
     "mime": "^2.3.1",
     "moment": "^2.22.2",
     "moment-timezone": "^0.5.32",
diff --git a/yarn.lock b/yarn.lock
index 2d1725f..99b127d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1251,10 +1251,10 @@ decamelize@^1.1.1:
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
   integrity sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=
 
-decimal.js@^10.0.0, decimal.js@^10.2.0:
-  version "10.2.0"
-  resolved "https://registry.yarnpkg.com/decimal.js/-/decimal.js-10.2.0.tgz#39466113a9e036111d02f82489b5fd6b0b5ed231"
-  integrity sha512-vDPw+rDgn3bZe1+F/pyEwb1oMG2XTlRVgAa6B4KccTEpYgF8w6eQllVbQcfIJnZyvzFtFpxnpGtx8dd7DJp/Rw==
+decimal.js@^10.0.0, decimal.js@^10.2.1:
+  version "10.4.3"
+  resolved "https://registry.yarnpkg.com/decimal.js/-/decimal.js-10.4.3.tgz#1044092884d245d1b7f65725fa4ad4c6f781cc23"
+  integrity sha512-VBBaLc1MgL5XpzgIP7ny5Z6Nx3UrRkIViUkPUdtl9aya5amy3De1gsUUSB1g3+3sExYNjCAsAznmukyxCb1GRA==
 
 decode-uri-component@^0.2.0:
   version "0.2.0"
@@ -2963,19 +2963,19 @@ markdown@^0.5.0:
   dependencies:
     nopt "~2.1.1"
 
-mathjs@^7.0.0:
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/mathjs/-/mathjs-7.0.0.tgz#eff3034f1a6b73984e595861a6bf9646d7b7d522"
-  integrity sha512-pe2hgDAHSfPRtuwIjNbL6fCKiHZYKKv45PusNfK3JDeVpVmHG1Pdig2vq62svsj2iKZO37tvLAjPUnrz6w+X9w==
+mathjs@^7.5.1:
+  version "7.5.1"
+  resolved "https://registry.yarnpkg.com/mathjs/-/mathjs-7.5.1.tgz#eb125295310a99ddcaf6145c47b09aab36e48274"
+  integrity sha512-H2q/Dq0qxBLMw+G84SSXmGqo/znihuxviGgAQwAcyeFLwK2HksvSGNx4f3dllZF51bWOnu2op60VZxH2Sb51Pw==
   dependencies:
     complex.js "^2.0.11"
-    decimal.js "^10.2.0"
+    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 "^1.1.1"
+    typed-function "^2.0.0"
 
 merge-source-map@1.0.4:
   version "1.0.4"
@@ -4598,10 +4598,10 @@ type@^2.0.0:
   resolved "https://registry.yarnpkg.com/type/-/type-2.0.0.tgz#5f16ff6ef2eb44f260494dae271033b29c09a9c3"
   integrity sha512-KBt58xCHry4Cejnc2ISQAF7QY+ORngsWfxezO68+12hKV6lQY8P/psIkcbjeHWn7MqcgciWJyCCevFMJdIXpow==
 
-typed-function@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/typed-function/-/typed-function-1.1.1.tgz#a1316187ec3628c9e219b91ca96918660a10138e"
-  integrity sha512-RbN7MaTQBZLJYzDENHPA0nUmWT0Ex80KHItprrgbTPufYhIlTePvCXZxyQK7wgn19FW5bnuaBIKcBb5mRWjB1Q==
+typed-function@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/typed-function/-/typed-function-2.1.0.tgz#ded6f8a442ba8749ff3fe75bc41419c8d46ccc3f"
+  integrity sha512-bctQIOqx2iVbWGDGPWwIm18QScpu2XRmkC19D8rQGFsjKSgteq/o1hTZvIG/wuDq8fanpBDrLkLq+aEN/6y5XQ==
 
 typedarray@^0.0.6:
   version "0.0.6"