diff --git a/cli/src/template.rs b/cli/src/template.rs
index 4d1d0806d4..78ae2f5235 100644
--- a/cli/src/template.rs
+++ b/cli/src/template.rs
@@ -237,6 +237,7 @@ pub fn ts_package_json() -> String {
         "chai": "^4.3.4",
         "mocha": "^9.0.3",
         "ts-mocha": "^8.0.0",
+        "@types/chai": "^4.3.0",
         "@types/mocha": "^9.0.0",
         "typescript": "^4.3.5"
     }}