diff --git a/package-lock.json b/package-lock.json
index d06c78ba86..bfcffed19e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -260,16 +260,6 @@
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     },
-    "JSONStream": {
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-      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.1.tgz",
-      "integrity": "sha1-cH92HgHa6eFvG8+TcDt4xwlmV5o=",
-      "dev": true,
-      "requires": {
-        "jsonparse": "1.3.1",
-        "through": "2.3.8"
-      }
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       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.0.tgz",
@@ -1551,8 +1541,8 @@
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       "dev": true,
       "requires": {
-        "JSONStream": "1.3.1",
         "is-text-path": "1.0.1",
+        "JSONStream": "1.3.1",
         "lodash": "4.17.4",
         "meow": "3.7.0",
         "split2": "2.1.1",
@@ -4018,9 +4008,9 @@
       "integrity": "sha1-597mbjXW/Bb3EP6R1c9p9w8IkR0="
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-      "version": "0.5.4",
-      "resolved": "https://registry.npmjs.org/json-loader/-/json-loader-0.5.4.tgz",
-      "integrity": "sha1-i6oTZaYy9Yo8RtIBdfxgAsluN94="
+      "version": "0.5.7",
+      "resolved": "https://registry.npmjs.org/json-loader/-/json-loader-0.5.7.tgz",
+      "integrity": "sha512-QLPs8Dj7lnf3e3QYS1zkCo+4ZwqOiF9d/nZnYozTISxXWCfNs9yuky5rJw4/W34s7POaNlbZmQGaB5NiXCbP4w=="
     },
     "json-parse-better-errors": {
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@@ -4086,6 +4076,16 @@
       "integrity": "sha1-T9kss04OnbPInIYi7PUfm5eMbLk=",
       "dev": true
     },
+    "JSONStream": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.1.tgz",
+      "integrity": "sha1-cH92HgHa6eFvG8+TcDt4xwlmV5o=",
+      "dev": true,
+      "requires": {
+        "jsonparse": "1.3.1",
+        "through": "2.3.8"
+      }
+    },
     "jsprim": {
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       "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
@@ -7152,6 +7152,14 @@
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       "integrity": "sha1-J5siXfHVgrH1TmWt3UNS4Y+qBxM="
     },
+    "string_decoder": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
+      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
+      "requires": {
+        "safe-buffer": "5.1.1"
+      }
+    },
     "string-width": {
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       "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
@@ -7173,14 +7181,6 @@
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-    "string_decoder": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
-      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
-      "requires": {
-        "safe-buffer": "5.1.1"
-      }
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       "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",
@@ -7928,9 +7928,9 @@
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-      "version": "3.6.0",
-      "resolved": "https://registry.npmjs.org/webpack/-/webpack-3.6.0.tgz",
-      "integrity": "sha512-OsHT3D0W0KmPPh60tC7asNnOmST6bKTiR90UyEdT9QYoaJ4OYN4Gg7WK1k3VxHK07ZoiYWPsKvlS/gAjwL/vRA==",
+      "version": "3.7.1",
+      "resolved": "https://registry.npmjs.org/webpack/-/webpack-3.7.1.tgz",
+      "integrity": "sha512-8MR+gVfxsvtx4J1UlbRGkUJEpDQUBFmisRmpPO5cVLgF21R8UMChX39OOjDz63a+m/iswGoqATszdZB2VCsYuA==",
       "requires": {
         "acorn": "5.1.2",
         "acorn-dynamic-import": "2.0.2",
@@ -7940,7 +7940,7 @@
         "enhanced-resolve": "3.4.1",
         "escope": "3.6.0",
         "interpret": "1.0.4",
-        "json-loader": "0.5.4",
+        "json-loader": "0.5.7",
         "json5": "0.5.1",
         "loader-runner": "2.3.0",
         "loader-utils": "1.1.0",
@@ -7948,7 +7948,7 @@
         "mkdirp": "0.5.1",
         "node-libs-browser": "2.0.0",
         "source-map": "0.5.7",
-        "supports-color": "4.2.1",
+        "supports-color": "4.4.0",
         "tapable": "0.2.8",
         "uglifyjs-webpack-plugin": "0.4.6",
         "watchpack": "1.4.0",
@@ -8067,9 +8067,9 @@
           "integrity": "sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM="
         },
         "supports-color": {
-          "version": "4.2.1",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.2.1.tgz",
-          "integrity": "sha512-qxzYsob3yv6U+xMzPrv170y8AwGP7i74g+pbixCfD6rgso8BscLT2qXIuz6TpOaiJZ3mFgT5O9lyT9nMU4LfaA==",
+          "version": "4.4.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.4.0.tgz",
+          "integrity": "sha512-rKC3+DyXWgK0ZLKwmRsrkyHVZAjNkfzeehuFWdGGcqGDTZFH73+RH6S/RDAAxl9GusSjZSUWYLmT9N5pzXFOXQ==",
           "requires": {
             "has-flag": "2.0.0"
           }
diff --git a/package.json b/package.json
index 069365b759..4822fe5d14 100644
--- a/package.json
+++ b/package.json
@@ -93,7 +93,7 @@
     "typescript": "~2.4.2",
     "uglifyjs-webpack-plugin": "1.0.0-beta.1",
     "url-loader": "^0.6.0",
-    "webpack": "~3.6.0",
+    "webpack": "~3.7.1",
     "webpack-concat-plugin": "1.4.0",
     "webpack-dev-middleware": "~1.12.0",
     "webpack-dev-server": "~2.7.1",
diff --git a/packages/@angular/cli/package.json b/packages/@angular/cli/package.json
index c8aac9ba20..faf5f6b992 100644
--- a/packages/@angular/cli/package.json
+++ b/packages/@angular/cli/package.json
@@ -76,7 +76,7 @@
     "typescript": ">=2.0.0 <2.6.0",
     "uglifyjs-webpack-plugin": "1.0.0-beta.1",
     "url-loader": "^0.6.0",
-    "webpack": "~3.6.0",
+    "webpack": "~3.7.1",
     "webpack-concat-plugin": "1.4.0",
     "webpack-dev-middleware": "~1.12.0",
     "webpack-dev-server": "~2.7.1",