diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index 1daff0f..82e74c9 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -472,6 +472,7 @@
       "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
+      "optional": true,
       "requires": {
         "kind-of": "^3.0.2",
         "longest": "^1.0.1",
@@ -660,12 +661,9 @@
       "dev": true
     },
     "async": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.1.2.tgz",
-      "integrity": "sha1-YSpKtF70KnDN6Aa62G7m2wR+g4U=",
-      "requires": {
-        "lodash": "^4.14.0"
-      }
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.2.tgz",
+      "integrity": "sha512-H0E+qZaDEfx/FY4t7iLRv1W2fFI6+pyCeTw1uN20AQPiwqwM6ojPxHxdLv4z8hi2DtnW9BOckSspLucW7pIE5g=="
     },
     "async-each": {
       "version": "1.0.1",
@@ -3324,7 +3322,8 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "lowercase-keys": {
       "version": "1.0.0",
@@ -3714,6 +3713,7 @@
           "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
           "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
           "dev": true,
+          "optional": true,
           "requires": {
             "kind-of": "^3.0.2",
             "longest": "^1.0.1",
@@ -4632,7 +4632,8 @@
           "version": "1.0.1",
           "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
           "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "loose-envify": {
           "version": "1.3.1",
diff --git a/package.json b/package.json
index 2487ca5..7c64ee3 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "@opentelemetry/instrumentation-ioredis": "^0.16.0",
     "@opentelemetry/node": "^0.19.0",
     "@opentelemetry/tracing": "^0.19.0",
-    "async": "^2.0.1",
+    "async": "^3.2.2",
     "body-parser": "^1.15.2",
     "deepcopy": "^0.6.3",
     "express": "^4.14.0",