diff --git a/yarn.lock b/yarn.lock
index 76856ca3..796c2bd3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3036,6 +3036,10 @@ generic-pool@2.4.2:
   version "2.4.2"
   resolved "https://registry.yarnpkg.com/generic-pool/-/generic-pool-2.4.2.tgz#886bc5bf0beb7db96e81bcbba078818de5a62683"
 
+generic-pool@2.4.3:
+  version "2.4.3"
+  resolved "https://registry.yarnpkg.com/generic-pool/-/generic-pool-2.4.3.tgz#780c36f69dfad05a5a045dd37be7adca11a4f6ff"
+
 get-caller-file@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.2.tgz#f702e63127e7e231c160a80c1554acb70d5047e5"
@@ -4028,6 +4032,10 @@ js-sequence-diagrams@^1000000.0.6:
     raphael "~2.1.x"
     underscore "~1.4.x"
 
+js-string-escape@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/js-string-escape/-/js-string-escape-1.0.1.tgz#e2625badbc0d67c7533e9edc1068c587ae4137ef"
+
 js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
@@ -5271,14 +5279,14 @@ oauth@0.9.x:
   version "0.9.15"
   resolved "https://registry.yarnpkg.com/oauth/-/oauth-0.9.15.tgz#bd1fefaf686c96b75475aed5196412ff60cfb9c1"
 
+object-assign@4.1.0, object-assign@^4.0.1, object-assign@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.0.tgz#7a3b3d0e98063d43f4c03f2e8ae6cd51a86883a0"
+
 object-assign@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-3.0.0.tgz#9bedd5ca0897949bca47e7ff408062d549f587f2"
 
-object-assign@^4.0.1, object-assign@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.0.tgz#7a3b3d0e98063d43f4c03f2e8ae6cd51a86883a0"
-
 object-component@0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/object-component/-/object-component-0.0.3.tgz#f0c69aa50efc95b866c186f400a33769cb2f1291"
@@ -5700,32 +5708,41 @@ pg-hstore@^2.3.2:
   dependencies:
     underscore "^1.7.0"
 
-pg-pool@~2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/pg-pool/-/pg-pool-2.0.3.tgz#c022032c8949f312a4f91fb6409ce04076be3257"
+pg-int8@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/pg-int8/-/pg-int8-1.0.1.tgz#943bd463bf5b71b4170115f80f8efc9a0c0eb78c"
 
-pg-types@~1.12.1:
-  version "1.12.1"
-  resolved "https://registry.yarnpkg.com/pg-types/-/pg-types-1.12.1.tgz#d64087e3903b58ffaad279e7595c52208a14c3d2"
+pg-pool@1.*:
+  version "1.8.0"
+  resolved "https://registry.yarnpkg.com/pg-pool/-/pg-pool-1.8.0.tgz#f7ec73824c37a03f076f51bfdf70e340147c4f37"
   dependencies:
+    generic-pool "2.4.3"
+    object-assign "4.1.0"
+
+pg-types@1.*:
+  version "1.13.0"
+  resolved "https://registry.yarnpkg.com/pg-types/-/pg-types-1.13.0.tgz#75f490b8a8abf75f1386ef5ec4455ecf6b345c63"
+  dependencies:
+    pg-int8 "1.0.1"
     postgres-array "~1.0.0"
     postgres-bytea "~1.0.0"
     postgres-date "~1.0.0"
     postgres-interval "^1.1.0"
 
-pg@^7.4.3:
-  version "7.4.3"
-  resolved "https://registry.yarnpkg.com/pg/-/pg-7.4.3.tgz#f7b6f93f5340ecc2596afbb94a13e3d6b609834b"
+pg@^6.1.2:
+  version "6.4.2"
+  resolved "https://registry.yarnpkg.com/pg/-/pg-6.4.2.tgz#c364011060eac7a507a2ae063eb857ece910e27f"
   dependencies:
     buffer-writer "1.0.1"
+    js-string-escape "1.0.1"
     packet-reader "0.3.1"
     pg-connection-string "0.1.3"
-    pg-pool "~2.0.3"
-    pg-types "~1.12.1"
-    pgpass "1.x"
+    pg-pool "1.*"
+    pg-types "1.*"
+    pgpass "1.*"
     semver "4.3.2"
 
-pgpass@1.x:
+pgpass@1.*:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/pgpass/-/pgpass-1.0.2.tgz#2a7bb41b6065b67907e91da1b07c1847c877b306"
   dependencies: