diff --git a/microservices/blockchainConnector/package-lock.json b/microservices/blockchainConnector/package-lock.json
index 59669b0..f29632c 100644
--- a/microservices/blockchainConnector/package-lock.json
+++ b/microservices/blockchainConnector/package-lock.json
@@ -100,9 +100,9 @@
       }
     },
     "async": {
-      "version": "2.6.3",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
-      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
       "requires": {
         "lodash": "^4.17.14"
       }
diff --git a/microservices/blockchainConnector/package.json b/microservices/blockchainConnector/package.json
old mode 100755
new mode 100644
index 6cfe8eb..cf2e305
--- a/microservices/blockchainConnector/package.json
+++ b/microservices/blockchainConnector/package.json
@@ -15,7 +15,7 @@
   "license": "ISC",
   "dependencies": {
     "@openzeppelin/contracts": "^2.5.0",
-    "async": "^2.6.2",
+    "async": "^2.6.4",
     "bcrypt": "^3.0.2",
     "bignumber.js": "5.0.0",
     "crypto-json": "^2.0.2",