diff --git a/package.json b/package.json
index 7c543e52..a3a37a1c 100644
--- a/package.json
+++ b/package.json
@@ -64,7 +64,7 @@
     "babel-plugin-add-module-exports": "^1.0.4",
     "babel-plugin-istanbul": "^6.0.0",
     "babel-polyfill": "^6.26.0",
-    "chai": "^4.3.0",
+    "chai": "^6.2.2",
     "codecov": "^3.8.1",
     "cpy-cli": "^3.1.1",
     "cross-env": "^7.0.3",
diff --git a/yarn.lock b/yarn.lock
index 3310c3c7..9af722e5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1657,11 +1657,6 @@ assert@^1.1.1:
     object-assign "^4.1.1"
     util "0.10.3"
 
-assertion-error@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/assertion-error/-/assertion-error-1.1.0.tgz#e60b6b0e8f301bd97e5375215bda406c85118c0b"
-  integrity sha512-jgsaNduz+ndvGyFt3uSuWqvy4lCnIJiovtouQN5JZHOKCS2QuhEdbcQHFhVksz2N2U9hXJo8odG7ETyWlEeuDw==
-
 assign-symbols@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
@@ -2165,17 +2160,10 @@ 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==
-  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"
-    type-detect "^4.0.5"
+chai@^6.2.2:
+  version "6.2.2"
+  resolved "https://registry.yarnpkg.com/chai/-/chai-6.2.2.tgz#ae41b52c9aca87734505362717f3255facda360e"
+  integrity sha512-NUPRluOfOiTKBKvWPtSD4PhFvWCqOi0BGStNWs57X9js7XGTprSmFoz5F0tWhR4WPjNeR9jXqdC7/UpSJTnlRg==
 
 chalk@^1.1.3:
   version "1.1.3"
@@ -2212,11 +2200,6 @@ charm@^1.0.2:
   dependencies:
     inherits "^2.0.1"
 
-check-error@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.2.tgz#574d312edd88bb5dd8912e9286dd6c0aed4aac82"
-  integrity sha1-V00xLt2Iu13YkS6Sht1sCu1KrII=
-
 chokidar@3.4.3, chokidar@^3.4.0, chokidar@^3.4.1, chokidar@^3.4.2:
   version "3.4.3"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-3.4.3.tgz#c1df38231448e45ca4ac588e6c79573ba6a57d5b"
@@ -2768,13 +2751,6 @@ dedent@^0.7.0:
   resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.7.0.tgz#2495ddbaf6eb874abb0e1be9df22d2e5a544326c"
   integrity sha1-JJXduvbrh0q7Dhvp3yLS5aVEMmw=
 
-deep-eql@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-3.0.1.tgz#dfc9404400ad1c8fe023e7da1df1c147c4b444df"
-  integrity sha512-+QeIQyN5ZuO+3Uk5DYh6/1eKO0m0YmJFGNmFHGACpf1ClL1nmlV/p4gNgbl2pJGxgXb4faqo6UE+M5ACEMyVcw==
-  dependencies:
-    type-detect "^4.0.0"
-
 deep-equal@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/deep-equal/-/deep-equal-1.1.1.tgz#b5c98c942ceffaf7cb051e24e1434a25a2e6076a"
@@ -3750,11 +3726,6 @@ get-caller-file@^2.0.1:
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-2.0.5.tgz#4f94412a82db32f36e3b0b9741f8a97feb031f7e"
   integrity sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==
 
-get-func-name@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/get-func-name/-/get-func-name-2.0.0.tgz#ead774abee72e20409433a066366023dd6887a41"
-  integrity sha1-6td0q+5y4gQJQzoGY2YCPdaIekE=
-
 get-own-enumerable-property-symbols@^3.0.0:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/get-own-enumerable-property-symbols/-/get-own-enumerable-property-symbols-3.0.2.tgz#b5fde77f22cbe35f390b4e089922c50bce6ef664"
@@ -5800,11 +5771,6 @@ 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=
-
 pbkdf2@^3.0.3:
   version "3.0.17"
   resolved "https://registry.yarnpkg.com/pbkdf2/-/pbkdf2-3.0.17.tgz#976c206530617b14ebb32114239f7b09336e93a6"
@@ -7238,7 +7204,7 @@ type-check@^0.4.0, type-check@~0.4.0:
   dependencies:
     prelude-ls "^1.2.1"
 
-type-detect@4.0.8, type-detect@^4.0.0, type-detect@^4.0.5, type-detect@^4.0.8:
+type-detect@4.0.8, type-detect@^4.0.8:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.8.tgz#7646fb5f18871cfbb7749e69bd39a6388eb7450c"
   integrity sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==