diff --git a/package-lock.json b/package-lock.json
index ef075826ec5..3da61485c14 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1182,18 +1182,18 @@
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@@ -1562,6 +1550,41 @@
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@@ -7124,9 +7348,9 @@
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-      "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE="
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.2.tgz",
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@@ -7172,17 +7396,105 @@
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-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.32.0.tgz",
-      "integrity": "sha1-AwiOnr+edWtpdRYR0qXvWRSCyZU=",
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-        "string-width": "^1.0.1",
-        "window-size": "^0.1.4",
-        "y18n": "^3.2.0"
+      "version": "13.2.4",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.2.4.tgz",
+      "integrity": "sha512-HG/DWAJa1PAnHT9JAhNa8AbAv3FPaiLzioSjCcmuXXhP8MlpHO5vwls4g4j6n30Z74GVQj8Xa62dWVx1QCGklg==",
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+        "find-up": "^3.0.0",
+        "get-caller-file": "^2.0.1",
+        "os-locale": "^3.1.0",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^2.0.0",
+        "set-blocking": "^2.0.0",
+        "string-width": "^3.0.0",
+        "which-module": "^2.0.0",
+        "y18n": "^4.0.0",
+        "yargs-parser": "^13.1.0"
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+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.1.tgz",
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+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
+          "integrity": "sha512-PYeGSEmmHM6zvoef2w8TPzlrnNpXIjTipYK780YswmIP9vjxmd6Y2a3CB2Ks6/AU8NHjZugXvo8w3oWM2qnwXA==",
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+            "strip-ansi": "^5.2.0",
+            "wrap-ansi": "^5.1.0"
+          }
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+        "invert-kv": {
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+          "resolved": "https://registry.npmjs.org/invert-kv/-/invert-kv-2.0.0.tgz",
+          "integrity": "sha512-wPVv/y/QQ/Uiirj/vh3oP+1Ww+AWehmi1g5fFWGPF6IpCBCDVrhgHRMvrLfdYcwDh3QJbGXDW4JAuzxElLSqKA=="
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+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8="
+        },
+        "lcid": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/lcid/-/lcid-2.0.0.tgz",
+          "integrity": "sha512-avPEb8P8EGnwXKClwsNUgryVjllcRqtMYa49NTsbQagYuT1DcXnl1915oxWjoyGrXR6zH/Y0Zc96xWsPcoDKeA==",
+          "requires": {
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+        "os-locale": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-3.1.0.tgz",
+          "integrity": "sha512-Z8l3R4wYWM40/52Z+S265okfFj8Kt2cC2MKY+xNi3kFs+XGI7WXu/I309QQQYbRW4ijiZ+yxs9pqEhJh0DqW3Q==",
+          "requires": {
+            "execa": "^1.0.0",
+            "lcid": "^2.0.0",
+            "mem": "^4.0.0"
+          }
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "requires": {
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+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
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+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
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+          "requires": {
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+        "y18n": {
+          "version": "4.0.3",
+          "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.3.tgz",
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+    },
+    "yargs-parser": {
+      "version": "13.1.2",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
+      "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
+      "requires": {
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+        "decamelize": "^1.2.0"
+      },
+      "dependencies": {
+        "camelcase": {
+          "version": "5.3.1",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
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+        }
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     },
     "yauzl": {
diff --git a/package.json b/package.json
index 41eccd9aabf..cd3bfd0b640 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
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     "autoflow": "file:packages/autoflow",
     "autosave": "https://www.atom.io/api/packages/autosave/versions/0.24.6/tarball",
-    "babel-core": "5.8.38",
+    "babel-core": "6.0.0",
     "background-tips": "https://www.atom.io/api/packages/background-tips/versions/0.28.0/tarball",
     "base16-tomorrow-dark-theme": "file:packages/base16-tomorrow-dark-theme",
     "base16-tomorrow-light-theme": "file:packages/base16-tomorrow-light-theme",
@@ -134,7 +134,7 @@
     "open-on-github": "https://www.atom.io/api/packages/open-on-github/versions/1.3.2/tarball",
     "package-generator": "https://www.atom.io/api/packages/package-generator/versions/1.3.0/tarball",
     "pathwatcher": "8.1.0",
-    "postcss": "5.2.4",
+    "postcss": "7.0.37",
     "postcss-selector-parser": "2.2.1",
     "property-accessors": "^1.1.3",
     "random-words": "0.0.1",
@@ -167,7 +167,7 @@
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     "winreg": "^1.2.1",
     "wrap-guide": "https://www.atom.io/api/packages/wrap-guide/versions/0.41.0/tarball",
-    "yargs": "^3.23.0"
+    "yargs": "^13.2.4"
   },
   "packageDependencies": {
     "atom-dark-syntax": "file:./packages/atom-dark-syntax",