diff --git a/package.json b/package.json
index deb5854..d34ad82 100644
--- a/package.json
+++ b/package.json
@@ -57,8 +57,8 @@
     "@voxpelli/eslint-config": "^20.0.0",
     "@voxpelli/tsconfig": "^12.0.1",
     "c8": "^10.1.2",
-    "chai": "^4.4.1",
-    "chai-as-promised": "^7.1.2",
+    "chai": "^5.1.1",
+    "chai-as-promised": "^8.0.0",
     "chai-quantifiers": "^1.0.18",
     "eslint": "^9.7.0",
     "husky": "^9.0.11",