diff --git a/package-lock.json b/package-lock.json
index cdb4e54..98eaf42 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -290,12 +290,9 @@
       "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
     },
     "async": {
-      "version": "2.6.0",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.0.tgz",
-      "integrity": "sha512-xAfGg1/NTLBBKlHFmnd7PlmUW9KhVQIUuSrYem9xzFUZy13ScvtyGGejaae9iAVRiRq9+Cx7DPFaAAhCpyxyPw==",
-      "requires": {
-        "lodash": "4.17.15"
-      }
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.2.tgz",
+      "integrity": "sha512-H0E+qZaDEfx/FY4t7iLRv1W2fFI6+pyCeTw1uN20AQPiwqwM6ojPxHxdLv4z8hi2DtnW9BOckSspLucW7pIE5g=="
     },
     "atob-lite": {
       "version": "2.0.0",
@@ -1164,6 +1161,7 @@
           "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
           "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
           "dev": true,
+          "optional": true,
           "requires": {
             "kind-of": "3.2.2",
             "longest": "1.0.1",
@@ -1533,7 +1531,8 @@
           "version": "1.1.6",
           "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-1.1.6.tgz",
           "integrity": "sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==",
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "is-builtin-module": {
           "version": "1.0.0",
@@ -1629,6 +1628,7 @@
           "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
           "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
           "dev": true,
+          "optional": true,
           "requires": {
             "is-buffer": "1.1.6"
           }
@@ -1681,7 +1681,8 @@
           "version": "1.0.1",
           "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
           "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "lru-cache": {
           "version": "4.1.3",
@@ -1984,7 +1985,8 @@
           "version": "1.6.1",
           "resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz",
           "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "require-directory": {
           "version": "2.1.1",
diff --git a/package.json b/package.json
index 59e0ed3..5a04d66 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   "dependencies": {
     "@octokit/rest": "^16.43.1",
     "@slack/webhook": "^5.0.2",
-    "async": "^2.0.0-rc.3",
+    "async": "^3.2.2",
     "aws-sdk": "^2.604.0",
     "bl": "^1.1.2",
     "body-parser": "^1.15.0",