diff --git a/package-lock.json b/package-lock.json
index bad1e5d..580ac39 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2,6 +2,7 @@
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@@ -1072,8 +1033,7 @@
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@@ -2285,8 +2169,7 @@
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+            "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw="
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@@ -2315,11 +2198,6 @@
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-            "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
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@@ -2330,11 +2208,15 @@
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             "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M="
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+        "string_decoder": {
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+            "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
+            "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ=="
+        },
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-            "integrity": "sha1-BXw8mpChJzObudFwSikLt70KHsU=",
-            "dev": true
+            "integrity": "sha1-BXw8mpChJzObudFwSikLt70KHsU="
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@@ -2354,14 +2236,12 @@
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-            "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
-            "dev": true
+            "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc="
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             "resolved": "https://registry.npmjs.org/tar/-/tar-2.2.1.tgz",
-            "integrity": "sha1-jk0qJWwOIYXGsYrWlK7JaLg8sdE=",
-            "optional": true
+            "integrity": "sha1-jk0qJWwOIYXGsYrWlK7JaLg8sdE="
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@@ -2377,8 +2257,7 @@
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-                    "dev": true
+                    "integrity": "sha1-ZVkHw0aahoDcLeOidaj91paR8OU="
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@@ -2405,14 +2284,12 @@
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-            "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
-            "optional": true
+            "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q="
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-            "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
-            "dev": true
+            "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I="
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@@ -2428,24 +2305,18 @@
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-                    "integrity": "sha1-dc449SvwczxafwwRjYEzSiu19BI=",
-                    "dev": true,
-                    "optional": true
+                    "integrity": "sha1-dc449SvwczxafwwRjYEzSiu19BI="
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         "uglify-to-browserify": {
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             "resolved": "https://registry.npmjs.org/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz",
-            "integrity": "sha1-bgkk1r2mta/jSeOabWMoUKD4grc=",
-            "dev": true,
-            "optional": true
+            "integrity": "sha1-bgkk1r2mta/jSeOabWMoUKD4grc="
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@@ -2475,7 +2346,8 @@
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             "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.1.0.tgz",
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+            "integrity": "sha512-DIWtzUkw04M4k3bf1IcpS2tngXEL26YUD2M0tMDUpnUrz2hgzUBlD55a4FjdLGPvfHxS6uluGWvaVEqgBcVa+g==",
+            "dev": true
         },
         "vary": {
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@@ -2495,8 +2367,7 @@
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-            "integrity": "sha512-ijDLlyQ7s6x1JgCLur53osjm/UXUYD9+0PbYKrBsYisYXzCxN+HC3mYDNy/dWdmf3AwqwU3CXwDCvsNgGK1S0w==",
-            "optional": true
+            "integrity": "sha512-ijDLlyQ7s6x1JgCLur53osjm/UXUYD9+0PbYKrBsYisYXzCxN+HC3mYDNy/dWdmf3AwqwU3CXwDCvsNgGK1S0w=="
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@@ -2506,8 +2377,7 @@
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             "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
-            "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
-            "dev": true
+            "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus="
         },
         "wrappy": {
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diff --git a/package.json b/package.json
index 8a4b367..6bad2ef 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     },
     "dependencies": {
         "@google-cloud/pubsub": "^0.20.0",
-        "async": "^2.6.1",
+        "async": "^3.0.1",
         "kafka-connect": "^3.5.1"
     },
     "devDependencies": {