diff --git a/siloLapisTests/package-lock.json b/siloLapisTests/package-lock.json
index 71f118d39..c97adbb2c 100644
--- a/siloLapisTests/package-lock.json
+++ b/siloLapisTests/package-lock.json
@@ -13,7 +13,7 @@
         "@types/chai-as-promised": "^7.1.8",
         "@types/mocha": "^10.0.6",
         "@types/node": "^20.11.25",
-        "chai": "^4.3.10",
+        "chai": "^5.1.0",
         "chai-as-promised": "^7.1.1",
         "mocha": "^10.3.0",
         "prettier": "^3.2.5",
@@ -393,11 +393,11 @@
       }
     },
     "node_modules/assertion-error": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.1.0.tgz",
-      "integrity": "sha512-jgsaNduz+ndvGyFt3uSuWqvy4lCnIJiovtouQN5JZHOKCS2QuhEdbcQHFhVksz2N2U9hXJo8odG7ETyWlEeuDw==",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
+      "integrity": "sha512-Izi8RQcffqCeNVgFigKli1ssklIbpHnCYc6AknXGYoB6grJqyeby7jv12JUQgmTAnIDnbck1uxksT4dzN3PWBA==",
       "engines": {
-        "node": "*"
+        "node": ">=12"
       }
     },
     "node_modules/asynckit": {
@@ -555,20 +555,18 @@
       "integrity": "sha512-4tYFyifaFfGacoiObjJegolkwSU4xQNGbVgUiNYVUxbQ2x2lUsFvY4hVgVzGiIe6WLOPqycWXA40l+PWsxthUw=="
     },
     "node_modules/chai": {
-      "version": "4.3.10",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-4.3.10.tgz",
-      "integrity": "sha512-0UXG04VuVbruMUYbJ6JctvH0YnC/4q3/AkT18q4NaITo91CUm0liMS9VqzT9vZhVQ/1eqPanMWjBM+Juhfb/9g==",
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-5.1.0.tgz",
+      "integrity": "sha512-kDZ7MZyM6Q1DhR9jy7dalKohXQ2yrlXkk59CR52aRKxJrobmlBNqnFQxX9xOX8w+4mz8SYlKJa/7D7ddltFXCw==",
       "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"
+        "assertion-error": "^2.0.1",
+        "check-error": "^2.0.0",
+        "deep-eql": "^5.0.1",
+        "loupe": "^3.1.0",
+        "pathval": "^2.0.0"
       },
       "engines": {
-        "node": ">=4"
+        "node": ">=12"
       }
     },
     "node_modules/chai-as-promised": {
@@ -582,6 +580,14 @@
         "chai": ">= 2.1.2 < 5"
       }
     },
+    "node_modules/chai/node_modules/check-error": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/check-error/-/check-error-2.0.0.tgz",
+      "integrity": "sha512-tjLAOBHKVxtPoHe/SA7kNOMvhCRdCJ3vETdeY0RuAc9popf+hyaSV6ZEg9hr4cpWF7jmo/JSWEnLDrnijS9Tog==",
+      "engines": {
+        "node": ">= 16"
+      }
+    },
     "node_modules/chalk": {
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
@@ -862,12 +868,9 @@
       }
     },
     "node_modules/deep-eql": {
-      "version": "4.1.3",
-      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-4.1.3.tgz",
-      "integrity": "sha512-WaEtAOpRA1MQ0eohqZjpGD8zdI0Ovsm8mmFhaDN8dvDZzyoUMcYDnf5Y6iu7HTXxf8JDS23qWa4a+hKCDyOPzw==",
-      "dependencies": {
-        "type-detect": "^4.0.0"
-      },
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-5.0.1.tgz",
+      "integrity": "sha512-nwQCf6ne2gez3o1MxWifqkciwt0zhl0LO1/UwVu4uMBuPmflWM4oQ70XMqHqnBJA+nhzncaqL9HVL6KkHJ28lw==",
       "engines": {
         "node": ">=6"
       }
@@ -1481,11 +1484,11 @@
       }
     },
     "node_modules/loupe": {
-      "version": "2.3.6",
-      "resolved": "https://registry.npmjs.org/loupe/-/loupe-2.3.6.tgz",
-      "integrity": "sha512-RaPMZKiMy8/JruncMU5Bt6na1eftNoo++R4Y+N2FrxkDVTrGvcyzFTsaGif4QTeKESheMGegbhw6iUAq+5A8zA==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/loupe/-/loupe-3.1.0.tgz",
+      "integrity": "sha512-qKl+FrLXUhFuHUoDJG7f8P8gEMHq9NFS0c6ghXG1J0rldmZFQZoNVv/vyirE9qwCIhWZDsvEFd1sbFu3GvRQFg==",
       "dependencies": {
-        "get-func-name": "^2.0.0"
+        "get-func-name": "^2.0.1"
       }
     },
     "node_modules/make-error": {
@@ -1712,11 +1715,11 @@
       "integrity": "sha512-jczvQbCUS7XmS7o+y1aEO9OBVFeZBQ1MDSEqmO7xSoPgOPoowY/SxLpZ6Vh97/8qHZOteiCKb7gkG9gA2ZUxJA=="
     },
     "node_modules/pathval": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/pathval/-/pathval-1.1.1.tgz",
-      "integrity": "sha512-Dp6zGqpTdETdR63lehJYPeIOqpiNBNtc7BpWSLrOje7UaIsE5aY92r/AunQA7rsXvet3lrJ3JnZX29UPTKXyKQ==",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/pathval/-/pathval-2.0.0.tgz",
+      "integrity": "sha512-vE7JKRyES09KiunauX7nd2Q9/L7lhok4smP9RZTDeD4MVs72Dp2qNFVz39Nz5a0FVEW0BJR6C0DYrq6unoziZA==",
       "engines": {
-        "node": "*"
+        "node": ">= 14.16"
       }
     },
     "node_modules/performance-now": {
@@ -2134,14 +2137,6 @@
       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
       "integrity": "sha512-KXXFFdAbFXY4geFIwoyNK+f5Z1b7swfXABfL7HXCmoIWMKU3dmS26672A4EeQtDzLKy7SXmfBu51JolvEKwtGA=="
     },
-    "node_modules/type-detect": {
-      "version": "4.0.8",
-      "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
-      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
-      "engines": {
-        "node": ">=4"
-      }
-    },
     "node_modules/type-fest": {
       "version": "0.21.3",
       "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.21.3.tgz",
diff --git a/siloLapisTests/package.json b/siloLapisTests/package.json
index de9d06ac2..3470baadf 100644
--- a/siloLapisTests/package.json
+++ b/siloLapisTests/package.json
@@ -20,7 +20,7 @@
     "@types/chai": "^4.3.11",
     "@types/mocha": "^10.0.6",
     "@types/node": "^20.11.25",
-    "chai": "^4.3.10",
+    "chai": "^5.1.0",
     "mocha": "^10.3.0",
     "prettier": "^3.2.5",
     "request": "^2.88.2",