diff --git a/package.json b/package.json
index 6a6b239cf..8e26a2a5e 100644
--- a/package.json
+++ b/package.json
@@ -95,7 +95,7 @@
     "semver": "^5.4.1",
     "shell-quote": "^1.6.1",
     "url-regex": "^4.1.1",
-    "xterm": "^3.7.0",
+    "xterm": "^3.8.1",
     "webpack": "^4.12.0",
     "yamljs": "^0.3.0"
   },
@@ -107,7 +107,9 @@
   },
   "resolutions": {
     "ember-cli-babel": "^6.12.0",
-    "eslint-scope": "3.7.1"
+    "eslint-scope": "3.7.1",
+    "merge": "^1.2.1",
+    "node.extend": "^1.1.7"
   },
   "ember-addon": {
     "paths": [
diff --git a/yarn.lock b/yarn.lock
index e41304e15..3e81a3d2c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4528,6 +4528,11 @@ fstream@^1.0.0, fstream@^1.0.2:
     mkdirp ">=0.5 0"
     rimraf "2"
 
+function-bind@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
+  integrity sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==
+
 functional-red-black-tree@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
@@ -4798,6 +4803,13 @@ has-values@^1.0.0:
     is-number "^3.0.0"
     kind-of "^4.0.0"
 
+has@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/has/-/has-1.0.3.tgz#722d7cbfc1f6aa8241f16dd814e011e1f41e8796"
+  integrity sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==
+  dependencies:
+    function-bind "^1.1.1"
+
 hash-base@^3.0.0:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/hash-base/-/hash-base-3.0.4.tgz#5fc8686847ecd73499403319a6b0a3f3f6ae4918"
@@ -5303,9 +5315,10 @@ is-windows@^1.0.1, is-windows@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
 
-is@^3.1.0:
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/is/-/is-3.2.1.tgz#d0ac2ad55eb7b0bec926a5266f6c662aaa83dca5"
+is@^3.2.1:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/is/-/is-3.3.0.tgz#61cff6dd3c4193db94a3d62582072b44e5645d79"
+  integrity sha512-nW24QBoPcFGGHJGUwnfpI7Yc5CdqWNdsyHQszVE/z2pKHXzh7FZ5GWhJqSyaQ9wMkQnsTx+kAI8bHlCX4tKdbg==
 
 isarray@0.0.1:
   version "0.0.1"
@@ -6180,9 +6193,10 @@ merge-trees@^2.0.0:
     fs-updater "^1.0.4"
     heimdalljs "^0.2.5"
 
-merge@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
+merge@^1.2.0, merge@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.1.tgz#38bebf80c3220a8a487b6fcfb3941bb11720c145"
+  integrity sha512-VjFo4P5Whtj4vsLzsYBu5ayHhoHJ0UqNm7ibvShmbmoz7tGi0vXaoJbGdB+GmDMLUdg8DpQXEIeVDAe8MaABvQ==
 
 methods@~1.1.2:
   version "1.1.2"
@@ -6569,11 +6583,13 @@ node-sass@^4.7.2:
     stdout-stream "^1.4.0"
     "true-case-path" "^1.0.2"
 
-node.extend@~1.1.3:
-  version "1.1.6"
-  resolved "https://registry.yarnpkg.com/node.extend/-/node.extend-1.1.6.tgz#a7b882c82d6c93a4863a5504bd5de8ec86258b96"
+node.extend@^1.1.7, node.extend@~1.1.3:
+  version "1.1.8"
+  resolved "https://registry.yarnpkg.com/node.extend/-/node.extend-1.1.8.tgz#0aab3e63789f4e6d68b42bc00073ad1881243cf0"
+  integrity sha512-L/dvEBwyg3UowwqOUTyDsGBU6kjBQOpOhshio9V3i3BMPv5YUb9+mWNN8MK0IbWqT0AqaTSONZf0aTuMMahWgA==
   dependencies:
-    is "^3.1.0"
+    has "^1.0.3"
+    is "^3.2.1"
 
 "nopt@2 || 3", nopt@^3.0.3, nopt@^3.0.6:
   version "3.0.6"
@@ -8944,9 +8960,10 @@ xtend@^4.0.0, xtend@~4.0.0, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
 
-xterm@^3.7.0:
-  version "3.7.0"
-  resolved "https://registry.yarnpkg.com/xterm/-/xterm-3.7.0.tgz#b3eb1335dc04b92abe361711731d3b661e13db17"
+xterm@^3.8.1:
+  version "3.12.0"
+  resolved "https://registry.yarnpkg.com/xterm/-/xterm-3.12.0.tgz#74cc54013140cf0fd38a05a0d5d49e013e8a53bd"
+  integrity sha512-U5w1NJdrqAtnNju4W05uOxLzNgMD1sk0AnIkZ//Wa7xRdQTi9Dl1qkPdAaxWJ1a7A8xzNM4ogrX/4oSVl15qOw==
 
 y18n@^3.2.1:
   version "3.2.1"