diff --git a/package.json b/package.json
index 52902273f..c9a0710c4 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
     "reselect": "^3.0.0",
     "semver": "^5.3.0",
     "shapeshift.io": "^1.3.1",
-    "source-map-support": "^0.5.0",
+    "source-map-support": "^0.5.4",
     "tree-kill": "^1.1.0",
     "y18n": "^4.0.0"
   },
diff --git a/yarn.lock b/yarn.lock
index 957d3991b..9467075af 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7997,7 +7997,7 @@ rc-progress@^2.0.6:
     babel-runtime "6.x"
     prop-types "^15.5.8"
 
-rc@^1.0.1, rc@^1.1.6, rc@^1.1.7, rc@^1.2.1:
+rc@^1.0.1, rc@^1.1.2, rc@^1.1.6, rc@^1.1.7, rc@^1.2.1:
   version "1.2.5"
   resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.5.tgz#275cd687f6e3b36cc756baa26dfee80a790301fd"
   dependencies:
@@ -8006,15 +8006,6 @@ rc@^1.0.1, rc@^1.1.6, rc@^1.1.7, rc@^1.2.1:
     minimist "^1.2.0"
     strip-json-comments "~2.0.1"
 
-rc@^1.1.2:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.2.tgz#d8ce9cb57e8d64d9c7badd9876c7c34cbe3c7077"
-  dependencies:
-    deep-extend "~0.4.0"
-    ini "~1.3.0"
-    minimist "^1.2.0"
-    strip-json-comments "~2.0.1"
-
 react-addons-create-fragment@^15.0.0:
   version "15.6.2"
   resolved "https://registry.yarnpkg.com/react-addons-create-fragment/-/react-addons-create-fragment-15.6.2.tgz#a394de7c2c7becd6b5475ba1b97ac472ce7c74f8"
@@ -9058,15 +9049,9 @@ source-map-support@^0.4.15:
   dependencies:
     source-map "^0.5.6"
 
-source-map-support@^0.5.0:
-  version "0.5.0"
-  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.0.tgz#2018a7ad2bdf8faf2691e5fddab26bed5a2bacab"
-  dependencies:
-    source-map "^0.6.0"
-
-source-map-support@^0.5.3:
-  version "0.5.3"
-  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.3.tgz#2b3d5fff298cfa4d1afd7d4352d569e9a0158e76"
+source-map-support@^0.5.0, source-map-support@^0.5.3, source-map-support@^0.5.4:
+  version "0.5.4"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.4.tgz#54456efa89caa9270af7cd624cc2f123e51fbae8"
   dependencies:
     source-map "^0.6.0"