diff --git a/packages/pg/package.json b/packages/pg/package.json
index 37afe6149..591f8818a 100644
--- a/packages/pg/package.json
+++ b/packages/pg/package.json
@@ -29,7 +29,7 @@
     "pgpass": "1.x"
   },
   "devDependencies": {
-    "async": "2.6.4",
+    "async": "3.2.4",
     "bluebird": "3.5.2",
     "co": "4.6.0",
     "pg-copy-streams": "0.3.0"
diff --git a/yarn.lock b/yarn.lock
index d1cce1ee2..58674fa58 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1349,12 +1349,10 @@ async@1.x:
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
   integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
 
-async@2.6.4:
-  version "2.6.4"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.6.4.tgz#706b7ff6084664cd7eae713f6f965433b5504221"
-  integrity sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==
-  dependencies:
-    lodash "^4.17.14"
+async@3.2.4:
+  version "3.2.4"
+  resolved "https://registry.yarnpkg.com/async/-/async-3.2.4.tgz#2d22e00f8cddeb5fde5dd33522b56d1cf569a81c"
+  integrity sha512-iAB+JbDEGXhyIUavoDl9WP/Jj106Kz9DEn1DPgYw5ruDn0e3Wgi3sKFm55sASdGBNOQB8F59d9qQ7deqrHA8wQ==
 
 asynckit@^0.4.0:
   version "0.4.0"