diff --git a/src/auth/package-lock.json b/src/auth/package-lock.json
index 9db84855..90454f3a 100644
--- a/src/auth/package-lock.json
+++ b/src/auth/package-lock.json
@@ -124,11 +124,11 @@
       "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==",
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
       "requires": {
-        "lodash": "^4.17.11"
+        "lodash": "^4.17.14"
       }
     },
     "asynckit": {
diff --git a/src/auth/package.json b/src/auth/package.json
index b5b640ad..28a2a895 100644
--- a/src/auth/package.json
+++ b/src/auth/package.json
@@ -37,7 +37,7 @@
   "homepage": "https://github.com/Haufe-Lexware/wicked.portal-auth",
   "dependencies": {
     "@types/node": "^10.3.2",
-    "async": "2.6.2",
+    "async": "2.6.4",
     "body-parser": "1.18.3",
     "bootstrap": "3.4.1",
     "connect-redis": "3.3.2",