diff --git a/yarn.lock b/yarn.lock
index 92aef8e..3a929c5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -21,8 +21,8 @@
   resolved "https://registry.yarnpkg.com/@types/jest/-/jest-21.1.10.tgz#dcacb5217ddf997a090cc822bba219b4b2fd7984"
 
 "@types/node@*":
-  version "10.12.12"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.12.12.tgz#e15a9d034d9210f00320ef718a50c4a799417c47"
+  version "10.12.15"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.12.15.tgz#20e85651b62fd86656e57c9c9bc771ab1570bc59"
 
 "@types/node@8.10.38":
   version "8.10.38"
@@ -1369,7 +1369,7 @@ invert-kv@^1.0.0:
 
 is-accessor-descriptor@^0.1.6:
   version "0.1.6"
-  resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz#a9e12cb3ae8d876727eeef3843f8a0897b5c98d6"
+  resolved "http://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz#a9e12cb3ae8d876727eeef3843f8a0897b5c98d6"
   dependencies:
     kind-of "^3.0.2"
 
@@ -1407,7 +1407,7 @@ is-ci@^1.0.10:
 
 is-data-descriptor@^0.1.4:
   version "0.1.4"
-  resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz#0b5ee648388e2c860282e793f1856fec3f301b56"
+  resolved "http://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz#0b5ee648388e2c860282e793f1856fec3f301b56"
   dependencies:
     kind-of "^3.0.2"
 
@@ -2228,8 +2228,8 @@ ms@^2.1.1:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
 
 nan@^2.9.2:
-  version "2.11.1"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.11.1.tgz#90e22bccb8ca57ea4cd37cc83d3819b52eea6766"
+  version "2.12.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.12.0.tgz#9d443fdb5e13a20770cc5e602eee59760a685885"
 
 nanomatch@^1.2.9:
   version "1.2.13"
@@ -2612,8 +2612,8 @@ pseudomap@^1.0.2:
   resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
 
 psl@^1.1.24, psl@^1.1.28:
-  version "1.1.29"
-  resolved "https://registry.yarnpkg.com/psl/-/psl-1.1.29.tgz#60f580d360170bb722a797cc704411e6da850c67"
+  version "1.1.31"
+  resolved "https://registry.yarnpkg.com/psl/-/psl-1.1.31.tgz#e9aa86d0101b5b105cbe93ac6b784cd547276184"
 
 punycode@^1.4.1:
   version "1.4.1"
@@ -2691,8 +2691,8 @@ readable-stream@^2.0.2, readable-stream@^2.0.6:
     util-deprecate "~1.0.1"
 
 readable-stream@^3.0.6:
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.0.6.tgz#351302e4c68b5abd6a2ed55376a7f9a25be3057a"
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.1.0.tgz#19c2e9c1ce43507c53f6eefbcf1ee3d4aaa786f5"
   dependencies:
     inherits "^2.0.3"
     string_decoder "^1.1.1"
@@ -3020,7 +3020,7 @@ string-length@^2.0.0:
 
 string-width@^1.0.1:
   version "1.0.2"
-  resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
+  resolved "http://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
   dependencies:
     code-point-at "^1.0.0"
     is-fullwidth-code-point "^1.0.0"