diff --git a/package-lock.json b/package-lock.json
index ca612db9..f3582fb9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,7 +23,7 @@
         "@xml-conformance-suite/js": "^3.0.0",
         "@xml-conformance-suite/mocha": "^3.0.0",
         "@xml-conformance-suite/test-data": "^3.0.0",
-        "chai": "^4.5.0",
+        "chai": "^5.1.1",
         "conventional-changelog-cli": "^2.2.2",
         "eslint": "^8.57.0",
         "eslint-config-lddubeau-base": "^6.1.0",
@@ -1007,6 +1007,24 @@
         "saxes": "^5.0.1"
       }
     },
+    "node_modules/@xml-conformance-suite/js/node_modules/chai": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
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+      "dev": true,
+      "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": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/@xml-conformance-suite/mocha": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/@xml-conformance-suite/mocha/-/mocha-3.0.0.tgz",
@@ -1488,21 +1506,64 @@
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-      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
-      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-5.1.1.tgz",
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       "dev": true,
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-        "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": "^4.1.0"
+        "assertion-error": "^2.0.1",
+        "check-error": "^2.1.1",
+        "deep-eql": "^5.0.1",
+        "loupe": "^3.1.0",
+        "pathval": "^2.0.0"
       },
       "engines": {
-        "node": ">=4"
+        "node": ">=12"
+      }
+    },
+    "node_modules/chai/node_modules/assertion-error": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
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+      "dev": true,
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/chai/node_modules/check-error": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/check-error/-/check-error-2.1.1.tgz",
+      "integrity": "sha512-OAlb+T7V4Op9OwdkjmguYRqncdlx5JiofwOAUkmTF+jNdHwzTaTs4sRAGpzLF3oOz5xAyDGrPgeIDFQmDOTiJw==",
+      "dev": true,
+      "engines": {
+        "node": ">= 16"
+      }
+    },
+    "node_modules/chai/node_modules/deep-eql": {
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-5.0.2.tgz",
+      "integrity": "sha512-h5k/5U50IJJFpzfL6nO9jaaumfjO/f2NjK/oYB2Djzm4p9L+3T9qWpZqZ2hAbLPuuYq9wrU08WQyBTL5GbPk5Q==",
+      "dev": true,
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/chai/node_modules/loupe": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/loupe/-/loupe-3.1.1.tgz",
+      "integrity": "sha512-edNu/8D5MKVfGVFRhFf8aAxiTM6Wumfz5XsaatSxlD3w4R1d/WEKUTydCdPGbl9K7QG/Ca3GnDV2sIKIpXRQcw==",
+      "dev": true,
+      "dependencies": {
+        "get-func-name": "^2.0.1"
+      }
+    },
+    "node_modules/chai/node_modules/pathval": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/pathval/-/pathval-2.0.0.tgz",
+      "integrity": "sha512-vE7JKRyES09KiunauX7nd2Q9/L7lhok4smP9RZTDeD4MVs72Dp2qNFVz39Nz5a0FVEW0BJR6C0DYrq6unoziZA==",
+      "dev": true,
+      "engines": {
+        "node": ">= 14.16"
       }
     },
     "node_modules/chalk": {
@@ -8191,6 +8252,23 @@
         "minimist": "^1.2.5",
         "mocha": "^9.1.3",
         "saxes": "^5.0.1"
+      },
+      "dependencies": {
+        "chai": {
+          "version": "4.5.0",
+          "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
+          "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+          "dev": true,
+          "requires": {
+            "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": "^4.1.0"
+          }
+        }
       }
     },
     "@xml-conformance-suite/mocha": {
@@ -8540,18 +8618,51 @@
       }
     },
     "chai": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
-      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-5.1.1.tgz",
+      "integrity": "sha512-pT1ZgP8rPNqUgieVaEY+ryQr6Q4HXNg8Ei9UnLUrjN4IA7dvQC5JB+/kxVcPNDHyBcc/26CXPkbNzq3qwrOEKA==",
       "dev": true,
       "requires": {
-        "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": "^4.1.0"
+        "assertion-error": "^2.0.1",
+        "check-error": "^2.1.1",
+        "deep-eql": "^5.0.1",
+        "loupe": "^3.1.0",
+        "pathval": "^2.0.0"
+      },
+      "dependencies": {
+        "assertion-error": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
+          "integrity": "sha512-Izi8RQcffqCeNVgFigKli1ssklIbpHnCYc6AknXGYoB6grJqyeby7jv12JUQgmTAnIDnbck1uxksT4dzN3PWBA==",
+          "dev": true
+        },
+        "check-error": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/check-error/-/check-error-2.1.1.tgz",
+          "integrity": "sha512-OAlb+T7V4Op9OwdkjmguYRqncdlx5JiofwOAUkmTF+jNdHwzTaTs4sRAGpzLF3oOz5xAyDGrPgeIDFQmDOTiJw==",
+          "dev": true
+        },
+        "deep-eql": {
+          "version": "5.0.2",
+          "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-5.0.2.tgz",
+          "integrity": "sha512-h5k/5U50IJJFpzfL6nO9jaaumfjO/f2NjK/oYB2Djzm4p9L+3T9qWpZqZ2hAbLPuuYq9wrU08WQyBTL5GbPk5Q==",
+          "dev": true
+        },
+        "loupe": {
+          "version": "3.1.1",
+          "resolved": "https://registry.npmjs.org/loupe/-/loupe-3.1.1.tgz",
+          "integrity": "sha512-edNu/8D5MKVfGVFRhFf8aAxiTM6Wumfz5XsaatSxlD3w4R1d/WEKUTydCdPGbl9K7QG/Ca3GnDV2sIKIpXRQcw==",
+          "dev": true,
+          "requires": {
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+          }
+        },
+        "pathval": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/pathval/-/pathval-2.0.0.tgz",
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+          "dev": true
+        }
       }
     },
     "chalk": {
diff --git a/package.json b/package.json
index f297ba69..51a33bf8 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "@xml-conformance-suite/js": "^3.0.0",
     "@xml-conformance-suite/mocha": "^3.0.0",
     "@xml-conformance-suite/test-data": "^3.0.0",
-    "chai": "^4.5.0",
+    "chai": "^5.1.1",
     "conventional-changelog-cli": "^2.2.2",
     "eslint": "^8.57.0",
     "eslint-config-lddubeau-base": "^6.1.0",