diff --git a/yarn.lock b/yarn.lock
index 3e2a1274b7..0eb3fde96e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1385,6 +1385,10 @@ commander@^2.15.1:
   version "2.15.1"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.15.1.tgz#df46e867d0fc2aec66a34662b406a9ccafff5b0f"
 
+commander@^2.16.0:
+  version "2.16.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.16.0.tgz#f16390593996ceb4f3eeb020b31d78528f7f8a50"
+
 commander@^2.9.0:
   version "2.11.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.11.0.tgz#157152fd1e7a6c8d98a5b715cf376df928004563"
@@ -3964,28 +3968,26 @@ kind-of@^6.0.0, kind-of@^6.0.2:
   version "6.0.2"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
 
-knex@^0.14.6:
-  version "0.14.6"
-  resolved "https://registry.yarnpkg.com/knex/-/knex-0.14.6.tgz#ad57c4ef8fa1b51ebc8c37c2c9b483f6fb34e41e"
+knex@^0.15.2:
+  version "0.15.2"
+  resolved "https://registry.yarnpkg.com/knex/-/knex-0.15.2.tgz#6059b87489605f4cc87599a6d2a9d265709e9340"
   dependencies:
     babel-runtime "^6.26.0"
     bluebird "^3.5.1"
     chalk "2.3.2"
-    commander "^2.15.1"
+    commander "^2.16.0"
     debug "3.1.0"
     inherits "~2.0.3"
     interpret "^1.1.0"
     liftoff "2.5.0"
-    lodash "^4.17.5"
+    lodash "^4.17.10"
     minimist "1.2.0"
     mkdirp "^0.5.1"
     pg-connection-string "2.0.0"
-    readable-stream "2.3.6"
-    safe-buffer "^5.1.1"
     tarn "^1.1.4"
     tildify "1.2.0"
-    uuid "^3.2.1"
-    v8flags "^3.0.2"
+    uuid "^3.3.2"
+    v8flags "^3.1.1"
 
 last-line-stream@^1.0.0:
   version "1.0.0"
@@ -5714,7 +5716,7 @@ readable-stream@1.1.x, "readable-stream@1.x >=1.1.9":
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
-readable-stream@2, readable-stream@2.3.6, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.3.0, readable-stream@^2.3.5:
+readable-stream@2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.3.0, readable-stream@^2.3.5:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   dependencies:
@@ -7137,13 +7139,17 @@ utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
 
-uuid@^3.0.0, uuid@^3.1.0, uuid@^3.2.1:
+uuid@^3.0.0, uuid@^3.1.0:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.2.1.tgz#12c528bb9d58d0b9265d9a2f6f0fe8be17ff1f14"
 
-v8flags@^3.0.2:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/v8flags/-/v8flags-3.1.0.tgz#246a34a8158c0e1390dcb758e1140e5d004e230b"
+uuid@^3.3.2:
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
+
+v8flags@^3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/v8flags/-/v8flags-3.1.1.tgz#42259a1461c08397e37fe1d4f1cfb59cad85a053"
   dependencies:
     homedir-polyfill "^1.0.1"