diff --git a/package-lock.json b/package-lock.json
index 9f05c9f..81cb9e2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,7 +8,7 @@
       "name": "progress",
       "version": "0.0.0",
       "dependencies": {
-        "async": "^0.9.0",
+        "async": "^2.6.4",
         "debug": "~4.3.3",
         "express": "~4.17.0",
         "jade": "~1.11.0",
@@ -139,9 +139,12 @@
       }
     },
     "node_modules/async": {
-      "version": "0.9.2",
-      "resolved": "https://registry.npmjs.org/async/-/async-0.9.2.tgz",
-      "integrity": "sha1-rqdNXmHB+JlhO/ZL2mbUx48v0X0="
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
+      "dependencies": {
+        "lodash": "^4.17.14"
+      }
     },
     "node_modules/asynckit": {
       "version": "0.4.0",
@@ -880,6 +883,11 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/lodash": {
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+    },
     "node_modules/longest": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
@@ -1795,9 +1803,12 @@
       "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
     },
     "async": {
-      "version": "0.9.2",
-      "resolved": "https://registry.npmjs.org/async/-/async-0.9.2.tgz",
-      "integrity": "sha1-rqdNXmHB+JlhO/ZL2mbUx48v0X0="
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
+      "requires": {
+        "lodash": "^4.17.14"
+      }
     },
     "asynckit": {
       "version": "0.4.0",
@@ -2373,6 +2384,11 @@
       "resolved": "https://registry.npmjs.org/lazy-cache/-/lazy-cache-1.0.4.tgz",
       "integrity": "sha1-odePw6UEdMuAhF07O24dpJpEbo4="
     },
+    "lodash": {
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+    },
     "longest": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
diff --git a/package.json b/package.json
index 39daf07..0d46e09 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "start": "node ./bin/www"
   },
   "dependencies": {
-    "async": "^0.9.0",
+    "async": "^2.6.4",
     "debug": "~4.3.3",
     "express": "~4.17.0",
     "jade": "~1.11.0",