diff --git a/package.json b/package.json
index f5a1527..58a722c 100644
--- a/package.json
+++ b/package.json
@@ -84,7 +84,7 @@
     "babel-plugin-istanbul": "^7.0.0",
     "bio-dts": "^0.11.0",
     "bpmn-js-properties-panel": "^5.18.1",
-    "chai": "^4.4.1",
+    "chai": "^5.0.0",
     "cross-env": "^7.0.3",
     "del-cli": "^5.1.0",
     "downloadjs": "^1.4.7",
@@ -113,7 +113,7 @@
     "remark-preset-bpmn-io": "^0.2.1",
     "rollup": "^4.18.0",
     "rollup-plugin-copy": "^3.5.0",
-    "sinon": "^17.0.1",
+    "sinon": "^18.0.0",
     "sinon-chai": "^3.7.0",
     "typescript": "^5.4.5",
     "webpack": "^5.92.1"