diff --git a/package-lock.json b/package-lock.json
index add0c4a..d843179 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -34,12 +34,9 @@
       "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
     },
     "async": {
-      "version": "2.6.2",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.2.tgz",
-      "integrity": "sha512-H1qVYh1MYhEEFLsP97cVKqCGo7KfCyTt6uEWqsTBr9SO84oK9Uwbyd/yCW+6rKJLHksBNUVWZDAjfS+Ccx0Bbg==",
-      "requires": {
-        "lodash": "^4.17.11"
-      }
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.2.tgz",
+      "integrity": "sha512-H0E+qZaDEfx/FY4t7iLRv1W2fFI6+pyCeTw1uN20AQPiwqwM6ojPxHxdLv4z8hi2DtnW9BOckSspLucW7pIE5g=="
     },
     "asynckit": {
       "version": "0.4.0",
@@ -352,11 +349,6 @@
       "resolved": "https://registry.npmjs.org/libqp/-/libqp-1.1.0.tgz",
       "integrity": "sha1-9ebgatdLeU+1tbZpiL9yjvHe2+g="
     },
-    "lodash": {
-      "version": "4.17.11",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-      "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg=="
-    },
     "mailcomposer": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/mailcomposer/-/mailcomposer-4.0.1.tgz",
diff --git a/package.json b/package.json
index 1067692..fb633d9 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   },
   "homepage": "https://github.com/xoor-io/lambda-send-attachment#readme",
   "dependencies": {
-    "async": "^2.6.2",
+    "async": "^3.2.2",
     "aws-sdk": "^2.413.0",
     "config": "^3.0.1",
     "node-ses": "^2.2.0",