diff --git a/package.json b/package.json
index 76e1e4a45..b8c74641d 100644
--- a/package.json
+++ b/package.json
@@ -11,12 +11,12 @@
     "@commitlint/travis-cli": "8.3.5",
     "@mike-works/js-lib-renovate-config": "2.0.0",
     "@mike-works/workshop-semantic-release-config": "1.0.0",
-    "@types/chai": "4.2.15",
+    "@types/chai": "4.2.22",
     "@types/mocha": "5.2.7",
-    "@types/node": "12.19.16",
+    "@types/node": "12.20.16",
     "@typescript-eslint/eslint-plugin": "2.34.0",
     "@typescript-eslint/parser": "2.34.0",
-    "chai": "4.3.0",
+    "chai": "4.3.4",
     "dtslint": "0.9.9",
     "eslint": "6.8.0",
     "husky": "3.1.0",
diff --git a/yarn.lock b/yarn.lock
index de61c126d..2ccfd51af 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1188,10 +1188,10 @@
     lodash "^4.17.4"
     read-pkg-up "^6.0.0"
 
-"@types/chai@4.2.15":
-  version "4.2.15"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.15.tgz#b7a6d263c2cecf44b6de9a051cf496249b154553"
-  integrity sha512-rYff6FI+ZTKAPkJUoyz7Udq3GaoDZnxYDEvdEdFZASiA7PoErltHezDishqQiSDWrGxvxmplH304jyzQmjp0AQ==
+"@types/chai@4.2.22":
+  version "4.2.22"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.22.tgz#47020d7e4cf19194d43b5202f35f75bd2ad35ce7"
+  integrity sha512-tFfcE+DSTzWAgifkjik9AySNqIyNoYwmR+uecPwwD/XRNfvOjmC/FjCxpiUGDkDVDphPfCUecSQVFw+lN3M3kQ==
 
 "@types/color-name@^1.1.1":
   version "1.1.1"
@@ -1237,10 +1237,10 @@
   resolved "https://registry.yarnpkg.com/@types/node/-/node-12.6.3.tgz#44d507c5634f85e7164707ca36bba21b5213d487"
   integrity sha512-7TEYTQT1/6PP53NftXXabIZDaZfaoBdeBm8Md/i7zsWRoBe0YwOXguyK8vhHs8ehgB/w9U4K/6EWuTyp0W6nIA==
 
-"@types/node@12.19.16":
-  version "12.19.16"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-12.19.16.tgz#15753af35cbef636182d8d8ca55b37c8583cecb3"
-  integrity sha512-7xHmXm/QJ7cbK2laF+YYD7gb5MggHIIQwqyjin3bpEGiSuvScMQ5JZZXPvRipi1MwckTQbJZROMns/JxdnIL1Q==
+"@types/node@12.20.16":
+  version "12.20.16"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-12.20.16.tgz#1acf34f6456208f495dac0434dd540488d17f991"
+  integrity sha512-6CLxw83vQf6DKqXxMPwl8qpF8I7THFZuIwLt4TnNsumxkp1VsRZWT8txQxncT/Rl2UojTsFzWgDG4FRMwafrlA==
 
 "@types/normalize-package-data@^2.4.0":
   version "2.4.0"
@@ -1937,16 +1937,16 @@ caseless@~0.12.0:
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
   integrity sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=
 
-chai@4.3.0:
-  version "4.3.0"
-  resolved "https://registry.yarnpkg.com/chai/-/chai-4.3.0.tgz#5523a5faf7f819c8a92480d70a8cccbadacfc25f"
-  integrity sha512-/BFd2J30EcOwmdOgXvVsmM48l0Br0nmZPlO0uOW4XKh6kpsUumRXBgPV+IlaqFaqr9cYbeoZAM1Npx0i4A+aiA==
+chai@4.3.4:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/chai/-/chai-4.3.4.tgz#b55e655b31e1eac7099be4c08c21964fce2e6c49"
+  integrity sha512-yS5H68VYOCtN1cjfwumDSuzn/9c+yza4f3reKXlE5rUg7SFcCEy90gJvydNgOYtblyf4Zi6jIWRnXOgErta0KA==
   dependencies:
     assertion-error "^1.1.0"
     check-error "^1.0.2"
     deep-eql "^3.0.1"
     get-func-name "^2.0.0"
-    pathval "^1.1.0"
+    pathval "^1.1.1"
     type-detect "^4.0.5"
 
 chalk@2.4.2, chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0, chalk@^2.3.1, chalk@^2.3.2, chalk@^2.4.1, chalk@^2.4.2:
@@ -6201,10 +6201,10 @@ path-type@^4.0.0:
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-4.0.0.tgz#84ed01c0a7ba380afe09d90a8c180dcd9d03043b"
   integrity sha512-gDKb8aZMDeD/tZWs9P6+q0J9Mwkdl6xMV8TjnGP3qJVJ06bdMgkbBlLU8IdfOsIsFz2BW1rNVT3XuNEl8zPAvw==
 
-pathval@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/pathval/-/pathval-1.1.0.tgz#b942e6d4bde653005ef6b71361def8727d0645e0"
-  integrity sha1-uULm1L3mUwBe9rcTYd74cn0GReA=
+pathval@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/pathval/-/pathval-1.1.1.tgz#8534e77a77ce7ac5a2512ea21e0fdb8fcf6c3d8d"
+  integrity sha512-Dp6zGqpTdETdR63lehJYPeIOqpiNBNtc7BpWSLrOje7UaIsE5aY92r/AunQA7rsXvet3lrJ3JnZX29UPTKXyKQ==
 
 performance-now@^2.1.0:
   version "2.1.0"