diff --git a/package.json b/package.json
index bcbddda9..aea648a9 100644
--- a/package.json
+++ b/package.json
@@ -76,7 +76,7 @@
   "devDependencies": {
     "@dadi/eslint-config": "^1.1.0",
     "@dadi/prettier-config": "^1.1.0",
-    "aws-sdk-mock": "^1.5.0",
+    "aws-sdk-mock": "^4.3.1",
     "coveralls": "^3.0.1",
     "env-test": "^1.0.0",
     "eslint": "^6.3.0",