diff --git a/yarn.lock b/yarn.lock
index bb7b425..c579c0e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -21,21 +21,21 @@ debug@^2.2.0:
     ms "0.7.3"
 
 ecstatic@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/ecstatic/-/ecstatic-2.1.0.tgz#477a4a6b25cecb112f697dbd2c7fa354154ea6be"
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/ecstatic/-/ecstatic-2.2.2.tgz#1c7969b7a8893a04852e9373edeeb1d62809d393"
   dependencies:
-    he "^0.5.0"
+    he "^1.1.1"
     mime "^1.2.11"
     minimist "^1.1.0"
-    url-join "^1.0.0"
+    url-join "^2.0.2"
 
 eventemitter3@1.x.x:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-1.2.0.tgz#1c86991d816ad1e504750e73874224ecf3bec508"
 
-he@^0.5.0:
-  version "0.5.0"
-  resolved "https://registry.yarnpkg.com/he/-/he-0.5.0.tgz#2c05ffaef90b68e860f3fd2b54ef580989277ee2"
+he@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/he/-/he-1.2.0.tgz#84ae65fa7eafb165fddb61566ae14baf05664f0f"
 
 http-proxy@^1.8.1:
   version "1.16.2"
@@ -58,16 +58,16 @@ http-server@^0.10.0:
     union "~0.4.3"
 
 mime@^1.2.11:
-  version "1.3.4"
-  resolved "https://registry.yarnpkg.com/mime/-/mime-1.3.4.tgz#115f9e3b6b3daf2959983cb38f149a2d40eb5d53"
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
 
 minimist@0.0.8:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
 
 minimist@^1.1.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
 
 minimist@~0.0.1:
   version "0.0.10"
@@ -116,9 +116,9 @@ union@~0.4.3:
   dependencies:
     qs "~2.3.3"
 
-url-join@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/url-join/-/url-join-1.1.0.tgz#741c6c2f4596c4830d6718460920d0c92202dc78"
+url-join@^2.0.2:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/url-join/-/url-join-2.0.5.tgz#5af22f18c052a000a48d7b82c5e9c2e2feeda728"
 
 wordwrap@~0.0.2:
   version "0.0.3"