diff --git a/package-lock.json b/package-lock.json
index bba4e6a..92572b2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2291,6 +2291,12 @@
         }
       }
     },
+    "sinon-chai": {
+      "version": "3.5.0",
+      "resolved": "https://registry.npmjs.org/sinon-chai/-/sinon-chai-3.5.0.tgz",
+      "integrity": "sha512-IifbusYiQBpUxxFJkR3wTU68xzBN0+bxCScEaKMjBvAQERg6FnTTc1F17rseLb1tjmkJ23730AXpFI0c47FgAg==",
+      "dev": true
+    },
     "slash": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/slash/-/slash-3.0.0.tgz",
diff --git a/package.json b/package.json
index fc40fd0..2caf60c 100644
--- a/package.json
+++ b/package.json
@@ -36,8 +36,8 @@
     "mocha": "8.2.1",
     "prettier": "2.2.1",
     "proxyquire": "2.1.3",
+    "sinon-chai": "3.5.0",
     "ts-sinon": "2.0.1",
-    "@types/sinon-chai": "3.2.5",
     "ts-node": "9.1.1",
     "tsc-watch": "^4.2.9",
     "typescript": "^4.1.3"