diff --git a/package.json b/package.json
index ccb0e2e..50425a6 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "@types/chance": "1.0.1",
     "@types/jest": "23.3.9",
     "@types/lodash.get": "4.4.6",
-    "@types/lodash.merge": "4.6.4",
+    "@types/lodash.merge": "4.6.6",
     "@types/loglevel": "1.5.3",
     "@types/node": "10.12.7",
     "chance": "1.0.16",
diff --git a/yarn.lock b/yarn.lock
index 6bd421c..c936bf7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -182,10 +182,10 @@
   dependencies:
     "@types/lodash" "*"
 
-"@types/lodash.merge@4.6.4":
-  version "4.6.4"
-  resolved "https://registry.yarnpkg.com/@types/lodash.merge/-/lodash.merge-4.6.4.tgz#0eaae4c82b82d0426612ba929f53edafe5402c58"
-  integrity sha512-usLWpRAicaNbx0VfNDREEgGWvp88inclJLXLJ3NpT83eUE4O05LJdYNRTofHq6pb/NiMZjzNVJHdgPvPzMfu6g==
+"@types/lodash.merge@4.6.6":
+  version "4.6.6"
+  resolved "https://registry.yarnpkg.com/@types/lodash.merge/-/lodash.merge-4.6.6.tgz#b84b403c1d31bc42d51772d1cd5557fa008cd3d6"
+  integrity sha512-IB90krzMf7YpfgP3u/EvZEdXVvm4e3gJbUvh5ieuI+o+XqiNEt6fCzqNRaiLlPVScLI59RxIGZMQ3+Ko/DJ8vQ==
   dependencies:
     "@types/lodash" "*"