diff --git a/yarn.lock b/yarn.lock
index 68ee5c4d6..e4bcf17ac 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1316,13 +1316,10 @@ acorn-jsx@^4.1.1:
   dependencies:
     acorn "^5.0.3"
 
-acorn@^5.0.0, acorn@^5.0.3, acorn@^5.6.0:
-  version "5.7.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.1.tgz#f095829297706a7c9776958c0afc8930a9b9d9d8"
-
-acorn@^5.5.3:
-  version "5.7.2"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.2.tgz#91fa871883485d06708800318404e72bfb26dcc5"
+acorn@^5.0.0, acorn@^5.0.3, acorn@^5.5.3, acorn@^5.6.0:
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
+  integrity sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==
 
 agent-base@4, agent-base@^4.1.0, agent-base@~4.2.0:
   version "4.2.1"
@@ -2489,7 +2486,7 @@ compressible@~2.0.13:
 
 compression@^1.7.1:
   version "1.7.2"
-  resolved "http://registry.npmjs.org/compression/-/compression-1.7.2.tgz#aaffbcd6aaf854b44ebb280353d5ad1651f59a69"
+  resolved "https://registry.npmjs.org/compression/-/compression-1.7.2.tgz#aaffbcd6aaf854b44ebb280353d5ad1651f59a69"
   dependencies:
     accepts "~1.3.4"
     bytes "3.0.0"
@@ -6865,7 +6862,7 @@ once@^1.3.0, once@^1.3.1, once@^1.4.0:
 
 onetime@^1.0.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+  resolved "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
 
 onetime@^2.0.0:
   version "2.0.1"