diff --git a/package.json b/package.json
index 4e149ae..64b7b24 100644
--- a/package.json
+++ b/package.json
@@ -56,6 +56,6 @@
   },
   "typings": "./dist/index.d.ts",
   "dependencies": {
-    "lodash.merge": "^4.6.1"
+    "deepmerge": "^3.2.0"
   }
 }
diff --git a/src/index.ts b/src/index.ts
index efdc53d..dd1a6f4 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,4 +1,4 @@
-import * as merge from 'lodash.merge';
+import * as deepmerge from 'deepmerge';
 
 const INIT_ACTION = '@ngrx/store/init';
 const UPDATE_ACTION = '@ngrx/store/update-reducers';
@@ -258,7 +258,11 @@ export const localStorageSync = (config: LocalStorageConfig) => (
     }
 
     if ((action.type === INIT_ACTION || action.type === UPDATE_ACTION) && rehydratedState) {
-      nextState = merge({}, nextState, rehydratedState);
+      const overwriteMerge = (destinationArray, sourceArray, options) => sourceArray;
+      const options: deepmerge.Options = {
+        arrayMerge: overwriteMerge
+      };
+      nextState = deepmerge(nextState, rehydratedState, options);
     }
 
     nextState = reducer(nextState, action);