diff --git a/package.json b/package.json
index c55728e..bfcf0da 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "chai": "4.4.1",
+    "chai": "5.1.0",
     "command-line-test": "1.0.10",
     "leia-parser": "0.4.0",
     "mocha": "10.3.0"