diff --git a/packages/airnode-adapter/package.json b/packages/airnode-adapter/package.json
index 27bcf5ab0..9b9345465 100644
--- a/packages/airnode-adapter/package.json
+++ b/packages/airnode-adapter/package.json
@@ -32,7 +32,7 @@
     "@types/chai": "^4.3.11",
     "@types/lodash": "^4.14.202",
     "@types/mocha": "^10.0.6",
-    "chai": "^4.4.1",
+    "chai": "^5.0.3",
     "ethereum-waffle": "^4.0.10",
     "hardhat": "^2.14.1",
     "jest": "^29.7.0",
diff --git a/packages/airnode-protocol/package.json b/packages/airnode-protocol/package.json
index 4d1fb16d1..9a4529969 100644
--- a/packages/airnode-protocol/package.json
+++ b/packages/airnode-protocol/package.json
@@ -34,7 +34,7 @@
     "@nomiclabs/hardhat-ethers": "^2.2.3",
     "@nomiclabs/hardhat-waffle": "^2.0.6",
     "@typechain/ethers-v5": "^11.1.2",
-    "chai": "^4.4.1",
+    "chai": "^5.0.3",
     "copyfiles": "^2.4.1",
     "ethereum-waffle": "^4.0.10",
     "hardhat": "^2.14.1",
diff --git a/yarn.lock b/yarn.lock
index c1297423e..8701f26d7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5695,10 +5695,10 @@ assert-plus@1.0.0, assert-plus@^1.0.0:
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
   integrity sha512-NfJ4UzBCcQGLDlQq7nHxH+tv3kyZ0hHQqF5BO6J7tNJeP5do1llPr8dZ8zHonfhAu0PHAdMkSo+8o0wxg9lZWw==
 
-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==
+assertion-error@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/assertion-error/-/assertion-error-2.0.1.tgz#f641a196b335690b1070bf00b6e7593fec190bf7"
+  integrity sha512-Izi8RQcffqCeNVgFigKli1ssklIbpHnCYc6AknXGYoB6grJqyeby7jv12JUQgmTAnIDnbck1uxksT4dzN3PWBA==
 
 ast-parents@^0.0.1:
   version "0.0.1"
@@ -6398,18 +6398,16 @@ cbor@^8.1.0:
   dependencies:
     nofilter "^3.1.0"
 
-chai@^4.4.1:
-  version "4.4.1"
-  resolved "https://registry.yarnpkg.com/chai/-/chai-4.4.1.tgz#3603fa6eba35425b0f2ac91a009fe924106e50d1"
-  integrity sha512-13sOfMv2+DWduEU+/xbun3LScLoqN17nBeTLUsmDfKdoiC1fr0n9PU4guu4AhRcOVFk/sW8LyZWHuhWtQZiF+g==
-  dependencies:
-    assertion-error "^1.1.0"
-    check-error "^1.0.3"
-    deep-eql "^4.1.3"
-    get-func-name "^2.0.2"
-    loupe "^2.3.6"
-    pathval "^1.1.1"
-    type-detect "^4.0.8"
+chai@^5.0.3:
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/chai/-/chai-5.0.3.tgz#db8e109373b86e7fb33d3ef0d0116f0fa8019066"
+  integrity sha512-wKGCtYv2kVY5WEjKqQ3fSIZWtTFveZCtzinhTZbx3/trVkxefiwovhpU9kRVCwxvKKCEjTWXPdM1/T7zPoDgow==
+  dependencies:
+    assertion-error "^2.0.1"
+    check-error "^2.0.0"
+    deep-eql "^5.0.1"
+    loupe "^3.1.0"
+    pathval "^2.0.0"
 
 chalk@3.0.0, chalk@~3.0.0:
   version "3.0.0"
@@ -6464,12 +6462,10 @@ charm@~0.1.1:
   resolved "https://registry.yarnpkg.com/charm/-/charm-0.1.2.tgz#06c21eed1a1b06aeb67553cdc53e23274bac2296"
   integrity sha512-syedaZ9cPe7r3hoQA9twWYKu5AIyCswN5+szkmPBe9ccdLrj4bYaCnLVPTLd2kgVRc7+zoX4tyPgRnFKCj5YjQ==
 
-check-error@^1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.3.tgz#a6502e4312a7ee969f646e83bb3ddd56281bd694"
-  integrity sha512-iKEoDYaRmd1mxM90a2OEfWhjsjPpYPuQ+lMYsoxB126+t8fw7ySEO48nmDg5COTjxDI65/Y2OWpeEHk3ZOe8zg==
-  dependencies:
-    get-func-name "^2.0.2"
+check-error@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/check-error/-/check-error-2.0.0.tgz#589a4f201b6256fd93a2d165089fe43d2676d8c6"
+  integrity sha512-tjLAOBHKVxtPoHe/SA7kNOMvhCRdCJ3vETdeY0RuAc9popf+hyaSV6ZEg9hr4cpWF7jmo/JSWEnLDrnijS9Tog==
 
 chokidar@3.3.0:
   version "3.3.0"
@@ -7279,12 +7275,10 @@ dedent@^1.0.0:
   resolved "https://registry.yarnpkg.com/dedent/-/dedent-1.5.1.tgz#4f3fc94c8b711e9bb2800d185cd6ad20f2a90aff"
   integrity sha512-+LxW+KLWxu3HW3M2w2ympwtqPrqYRzU8fqi6Fhd18fBALe15blJPI/I4+UHveMVG6lJqB4JNd4UG0S5cnVHwIg==
 
-deep-eql@^4.1.3:
-  version "4.1.3"
-  resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-4.1.3.tgz#7c7775513092f7df98d8df9996dd085eb668cc6d"
-  integrity sha512-WaEtAOpRA1MQ0eohqZjpGD8zdI0Ovsm8mmFhaDN8dvDZzyoUMcYDnf5Y6iu7HTXxf8JDS23qWa4a+hKCDyOPzw==
-  dependencies:
-    type-detect "^4.0.0"
+deep-eql@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-5.0.1.tgz#21ea2c0d561a4d08cdd99c417ac584e0fb121385"
+  integrity sha512-nwQCf6ne2gez3o1MxWifqkciwt0zhl0LO1/UwVu4uMBuPmflWM4oQ70XMqHqnBJA+nhzncaqL9HVL6KkHJ28lw==
 
 deep-extend@^0.6.0, deep-extend@~0.6.0:
   version "0.6.0"
@@ -9208,7 +9202,7 @@ get-caller-file@^2.0.1, get-caller-file@^2.0.5:
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-2.0.5.tgz#4f94412a82db32f36e3b0b9741f8a97feb031f7e"
   integrity sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==
 
-get-func-name@^2.0.1, get-func-name@^2.0.2:
+get-func-name@^2.0.1:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/get-func-name/-/get-func-name-2.0.2.tgz#0d7cf20cd13fda808669ffa88f4ffc7a3943fc41"
   integrity sha512-8vXOvuE167CtIc3OyItco7N/dpRtBbYOsPsXCz7X/PMnlGjYjSGuZJgM1Y7mmew7BKf9BqvLX2tnOVy1BBUsxQ==
@@ -11881,10 +11875,10 @@ loose-envify@^1.4.0:
   dependencies:
     js-tokens "^3.0.0 || ^4.0.0"
 
-loupe@^2.3.6:
-  version "2.3.7"
-  resolved "https://registry.yarnpkg.com/loupe/-/loupe-2.3.7.tgz#6e69b7d4db7d3ab436328013d37d1c8c3540c697"
-  integrity sha512-zSMINGVYkdpYSOBmLi0D1Uo7JU9nVdQKrHxC8eYlV+9YKK9WePqAlL7lSlorG/U2Fw1w0hTBmaa/jrQ3UbPHtA==
+loupe@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/loupe/-/loupe-3.1.0.tgz#46ef1a4ffee73145f5c0a627536d754787c1ea2a"
+  integrity sha512-qKl+FrLXUhFuHUoDJG7f8P8gEMHq9NFS0c6ghXG1J0rldmZFQZoNVv/vyirE9qwCIhWZDsvEFd1sbFu3GvRQFg==
   dependencies:
     get-func-name "^2.0.1"
 
@@ -13488,10 +13482,10 @@ 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@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/pathval/-/pathval-1.1.1.tgz#8534e77a77ce7ac5a2512ea21e0fdb8fcf6c3d8d"
-  integrity sha512-Dp6zGqpTdETdR63lehJYPeIOqpiNBNtc7BpWSLrOje7UaIsE5aY92r/AunQA7rsXvet3lrJ3JnZX29UPTKXyKQ==
+pathval@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/pathval/-/pathval-2.0.0.tgz#7e2550b422601d4f6b8e26f1301bc8f15a741a25"
+  integrity sha512-vE7JKRyES09KiunauX7nd2Q9/L7lhok4smP9RZTDeD4MVs72Dp2qNFVz39Nz5a0FVEW0BJR6C0DYrq6unoziZA==
 
 pbkdf2@^3.0.17, pbkdf2@^3.0.9:
   version "3.1.2"
@@ -15824,7 +15818,7 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
-type-detect@4.0.8, type-detect@^4.0.0, 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==