diff --git a/backend/hash/package-lock.json b/backend/hash/package-lock.json
index 067c4df..5debb61 100644
--- a/backend/hash/package-lock.json
+++ b/backend/hash/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "async": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/async/-/async-3.1.0.tgz",
-      "integrity": "sha512-4vx/aaY6j/j3Lw3fbCHNWP0pPaTCew3F6F3hYyl/tHs/ndmV1q7NW9T5yuJ2XAGwdQrP+6Wu20x06U4APo/iQQ=="
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.2.tgz",
+      "integrity": "sha512-H0E+qZaDEfx/FY4t7iLRv1W2fFI6+pyCeTw1uN20AQPiwqwM6ojPxHxdLv4z8hi2DtnW9BOckSspLucW7pIE5g=="
     },
     "bignumber.js": {
       "version": "7.2.1",
diff --git a/backend/hash/package.json b/backend/hash/package.json
index 7ba5d0d..99902f6 100644
--- a/backend/hash/package.json
+++ b/backend/hash/package.json
@@ -9,7 +9,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "async": "^3.1.0",
+    "async": "^3.2.2",
     "chance": "^1.0.18",
     "crypto": "^1.0.1",
     "lodash": "^4.17.15",