diff --git a/package.json b/package.json
index 5c17909..44891ca 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
   "dependencies": {
     "node-snap7": "^1.0.7",
     "iconv-lite": "0.6.3",
-    "async": "^3.2.5",
+    "async": "^3.2.6",
     "@iobroker/adapter-core": "^3.1.6"
   },
   "devDependencies": {