diff --git a/yarn.lock b/yarn.lock
index 13b6684a..b7d544b9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -569,7 +569,7 @@ braces@^1.8.2:
     preserve "^0.2.0"
     repeat-element "^1.1.2"
 
-braces@^2.3.1:
+braces@^2.3.0, braces@^2.3.1:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/braces/-/braces-2.3.2.tgz#5979fd3f14cd531565e5fa2df1abfff1dfaee729"
   dependencies:
@@ -737,6 +737,24 @@ chokidar@^1.6.0:
   optionalDependencies:
     fsevents "^1.0.0"
 
+chokidar@^2.0.0:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.0.3.tgz#dcbd4f6cbb2a55b4799ba8a840ac527e5f4b1176"
+  dependencies:
+    anymatch "^2.0.0"
+    async-each "^1.0.0"
+    braces "^2.3.0"
+    glob-parent "^3.1.0"
+    inherits "^2.0.1"
+    is-binary-path "^1.0.0"
+    is-glob "^4.0.0"
+    normalize-path "^2.1.1"
+    path-is-absolute "^1.0.0"
+    readdirp "^2.0.0"
+    upath "^1.0.0"
+  optionalDependencies:
+    fsevents "^1.1.2"
+
 chownr@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.0.1.tgz#e2a75042a9551908bebd25b8523d5f9769d79181"
@@ -1481,6 +1499,13 @@ fsevents@^1.0.0:
     nan "^2.3.0"
     node-pre-gyp "^0.6.39"
 
+fsevents@^1.1.2:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.2.4.tgz#f41dcb1af2582af3692da36fc55cbd8e1041c426"
+  dependencies:
+    nan "^2.9.2"
+    node-pre-gyp "^0.10.0"
+
 fsevents@^1.2.3:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.2.3.tgz#08292982e7059f6674c93d8b829c1e8604979ac0"
@@ -1569,6 +1594,13 @@ glob-parent@^2.0.0:
   dependencies:
     is-glob "^2.0.0"
 
+glob-parent@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-3.1.0.tgz#9e6af6299d8d3bd2bd40430832bd113df906c5ae"
+  dependencies:
+    is-glob "^3.1.0"
+    path-dirname "^1.0.0"
+
 glob2base@^0.0.12:
   version "0.0.12"
   resolved "https://registry.yarnpkg.com/glob2base/-/glob2base-0.0.12.tgz#9d419b3e28f12e83a362164a277055922c9c0d56"
@@ -1950,6 +1982,10 @@ is-extglob@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-1.0.0.tgz#ac468177c4943405a092fc8f29760c6ffc6206c0"
 
+is-extglob@^2.1.0, is-extglob@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-2.1.1.tgz#a88c02535791f02ed37c76a1b9ea9773c833f8c2"
+
 is-finite@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-finite/-/is-finite-1.0.2.tgz#cc6677695602be550ef11e8b4aa6305342b6d0aa"
@@ -1976,6 +2012,18 @@ is-glob@^2.0.0, is-glob@^2.0.1:
   dependencies:
     is-extglob "^1.0.0"
 
+is-glob@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-3.1.0.tgz#7ba5ae24217804ac70707b96922567486cc3e84a"
+  dependencies:
+    is-extglob "^2.1.0"
+
+is-glob@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-4.0.0.tgz#9521c76845cc2610a85203ddf080a958c2ffabc0"
+  dependencies:
+    is-extglob "^2.1.1"
+
 is-number@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-2.1.0.tgz#01fcbbb393463a548f2f466cce16dece49db908f"
@@ -2905,6 +2953,21 @@ node-notifier@^5.2.1:
     shellwords "^0.1.1"
     which "^1.3.0"
 
+node-pre-gyp@^0.10.0:
+  version "0.10.0"
+  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.10.0.tgz#6e4ef5bb5c5203c6552448828c852c40111aac46"
+  dependencies:
+    detect-libc "^1.0.2"
+    mkdirp "^0.5.1"
+    needle "^2.2.0"
+    nopt "^4.0.1"
+    npm-packlist "^1.1.6"
+    npmlog "^4.0.2"
+    rc "^1.1.7"
+    rimraf "^2.6.1"
+    semver "^5.3.0"
+    tar "^4"
+
 node-pre-gyp@^0.6.39:
   version "0.6.39"
   resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.39.tgz#c00e96860b23c0e1420ac7befc5044e1d78d8649"
@@ -2995,15 +3058,15 @@ number-is-nan@^1.0.0:
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
 
 nunjucks@^3.1.2:
-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/nunjucks/-/nunjucks-3.1.2.tgz#85945a66bb8239bb37ecef83dab4cc1f152aabb9"
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/nunjucks/-/nunjucks-3.1.3.tgz#9a23c844af01c143a0b40f3bdd1212a9d7877260"
   dependencies:
     a-sync-waterfall "^1.0.0"
     asap "^2.0.3"
     postinstall-build "^5.0.1"
     yargs "^3.32.0"
   optionalDependencies:
-    chokidar "^1.6.0"
+    chokidar "^2.0.0"
 
 "nwmatcher@>= 1.3.7 < 2.0.0", nwmatcher@^1.4.3:
   version "1.4.4"
@@ -3187,6 +3250,10 @@ pascalcase@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/pascalcase/-/pascalcase-0.1.1.tgz#b363e55e8006ca6fe21784d2db22bd15d7917f14"
 
+path-dirname@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/path-dirname/-/path-dirname-1.0.2.tgz#cc33d24d525e099a5388c0336c6e32b9160609e0"
+
 path-exists@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-2.1.0.tgz#0feb6c64f0fc518d9a754dd5efb62c7022761f4b"
@@ -4094,6 +4161,10 @@ unset-value@^1.0.0:
     has-value "^0.3.1"
     isobject "^3.0.0"
 
+upath@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/upath/-/upath-1.1.0.tgz#35256597e46a581db4793d0ce47fa9aebfc9fabd"
+
 urix@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"