diff --git a/extensions/csharp-o/gulpfile.js b/extensions/csharp-o/gulpfile.js
index e00fb8caa45..b78077bd37a 100644
--- a/extensions/csharp-o/gulpfile.js
+++ b/extensions/csharp-o/gulpfile.js
@@ -1,22 +1,60 @@
 var gulp = require('gulp');
 var decompress = require('gulp-decompress');
-var download = require('gulp-download');
+var es = require('event-stream');
+var GitHub = require('github-releases');
+var tmp = require('tmp');
+var vfs = require('vinyl-fs');
 var del = require('del');
 var fs = require('fs');
-var join = require('path').join;
+var path = require('path');
 
+tmp.setGracefulCleanup();
+
+function downloadOmnisharp(version) {
+	var result = es.through();
+
+	function onError(err) {
+		result.emit('error', err);
+	}
+
+	var repo = new GitHub({
+		repo: 'OmniSharp/omnisharp-roslyn',
+		token: process.env['GITHUB_TOKEN']
+	});
+
+	repo.getReleases({ tag_name: version }, function (err, releases) {
+		if (err) { return onError(err); }
+		if (!releases.length) { return onError(new Error('Release not found')); }
+		if (!releases[0].assets.length) { return onError(new Error('Assets not found')); }
+
+		repo.downloadAsset(releases[0].assets[0], function (err, istream) {
+			if (err) { return onError(err); }
+
+			tmp.file(function (err, tmpPath, fd, cleanupCallback) {
+				if (err) { return onError(err); }
+
+				var ostream = fs.createWriteStream(null, { fd: fd });
+				ostream.once('error', onError);
+				istream.once('error', onError);
+				ostream.once('finish', function () {
+					vfs.src(tmpPath).pipe(result);
+				});
+				istream.pipe(ostream);
+			});
+		});
+	});
+
+	return result;
+}
 
 gulp.task('omnisharp:clean', function () {
 	return del('bin');
 });
 
 gulp.task('omnisharp:fetch', ['omnisharp:clean'], function () {
-
-	var release = 'https://github.com/OmniSharp/omnisharp-roslyn/releases/download/v1.5.6/omnisharp.tar.gz';
-
-	return download(release)
+	return downloadOmnisharp('v1.5.6')
 		.pipe(decompress({strip: 1}))
-		.pipe(gulp.dest('bin'))
+		.pipe(gulp.dest('bin'));
 });
 
 gulp.task('omnisharp:fixscripts', ['omnisharp:fetch'], function () {
@@ -38,7 +76,7 @@ exec "$DIR/packages/dnx-mono.1.0.0-beta4/bin/dnx" "$DNX_APPBASE" run "$@"\n\
 
 	var promises = Object.keys(_fixes).map(function (key) {
 		return new Promise(function(resolve, reject) {
-			fs.writeFile(join(__dirname, key), _fixes[key], function (err) {
+			fs.writeFile(path.join(__dirname, key), _fixes[key], function (err) {
 				if (err) {
 					reject(err);
 				} else {
diff --git a/extensions/csharp-o/package.json b/extensions/csharp-o/package.json
index 4f0bf6e7cda..a86fa4ed76b 100644
--- a/extensions/csharp-o/package.json
+++ b/extensions/csharp-o/package.json
@@ -1,101 +1,104 @@
 {
-	"name": "csharp-o",
-	"version": "0.1.0",
-	"publisher": "vscode",
-	"engines": {
-		"node": "^4.0.0",
-		"vscode": "*"
-	},
-	"activationEvents": [
-		"onLanguage:csharp",
-		"onCommand:o.restart",
-		"onCommand:o.pickProjectAndStart",
-		"onCommand:o.restore",
-		"onCommand:o.execute",
-		"onCommand:o.showOutput",
-		"onCommand:o.execute",
-		"onCommand:o.execute-last-command"
-	],
-	"main": "./out/omnisharpMain",
-	"scripts": {
-		"postinstall": "node ./node_modules/gulp/bin/gulp.js omnisharp",
-		"vscode:prepublish": "node ../../node_modules/gulp/bin/gulp.js --gulpfile ../../gulpfile.plugins.js compile-plugin:csharp-o ./tsconfig.json"
-	},
-	"dependencies": {
-		"applicationinsights": "0.15.6",
-		"run-in-terminal": "*",
-		"semver": "*"
-	},
-	"devDependencies": {
-		"del": "^2.0.2",
-		"gulp": "^3.8.9",
-		"gulp-decompress": "^1.2.0",
-		"gulp-download": "^0.0.1",
-		"typescript": "^1.6.2"
-	},
-	"extensionDependencies": [
-		"vscode.csharp"
-	],
-	"contributes": {
-		"commands": [
-			{
-				"command": "o.restart",
-				"title": "Restart OmniSharp",
-				"category": "OmniSharp"
-			},
-			{
-				"command": "o.pickProjectAndStart",
-				"title": "Select Project",
-				"category": "OmniSharp"
-			},
-			{
-				"command": "o.restore",
-				"title": "Restore Packages",
-				"category": "dnx"
-			},
-			{
-				"command": "o.execute",
-				"title": "Run Command",
-				"category": "dnx"
-			}
-		],
-		"keybindings": [
-			{
-				"command": "o.showOutput",
-				"key": "Ctrl+L L",
-				"mac": "Cmd+L L"
-			},
-			{
-				"command": "o.execute",
-				"key": "Ctrl+L Shift+R",
-				"mac": "Cmd+L Shift+R"
-			},
-			{
-				"command": "o.execute-last-command",
-				"key": "Ctrl+L R",
-				"mac": "Cmd+L R"
-			},
-			{
-				"key": "shift+0",
-				"command": "^acceptSelectedSuggestion",
-				"when": "editorTextFocus && suggestWidgetVisible && editorLangId == 'csharp' && suggestionSupportsAcceptOnKey"
-			},
-			{
-				"key": "shift+9",
-				"command": "^acceptSelectedSuggestion",
-				"when": "editorTextFocus && suggestWidgetVisible && editorLangId == 'csharp' && suggestionSupportsAcceptOnKey"
-			},
-			{
-				"key": ".",
-				"command": "^acceptSelectedSuggestion",
-				"when": "editorTextFocus && suggestWidgetVisible && editorLangId == 'csharp' && suggestionSupportsAcceptOnKey"
-			}
-		],
-		"snippets": [
-			{
-				"language": "csharp",
-				"path": "./snippets/csharp.json"
-			}
-		]
-	}
+  "name": "csharp-o",
+  "version": "0.1.0",
+  "publisher": "vscode",
+  "engines": {
+    "node": "^4.0.0",
+    "vscode": "*"
+  },
+  "activationEvents": [
+    "onLanguage:csharp",
+    "onCommand:o.restart",
+    "onCommand:o.pickProjectAndStart",
+    "onCommand:o.restore",
+    "onCommand:o.execute",
+    "onCommand:o.showOutput",
+    "onCommand:o.execute",
+    "onCommand:o.execute-last-command"
+  ],
+  "main": "./out/omnisharpMain",
+  "scripts": {
+    "postinstall": "node ./node_modules/gulp/bin/gulp.js omnisharp",
+    "vscode:prepublish": "node ../../node_modules/gulp/bin/gulp.js --gulpfile ../../gulpfile.plugins.js compile-plugin:csharp-o ./tsconfig.json"
+  },
+  "dependencies": {
+    "applicationinsights": "0.15.6",
+    "run-in-terminal": "*",
+    "semver": "*"
+  },
+  "devDependencies": {
+    "del": "^2.0.2",
+    "event-stream": "^3.3.2",
+    "github-releases": "^0.3.0",
+    "gulp": "^3.8.9",
+    "gulp-decompress": "^1.2.0",
+    "tmp": "0.0.28",
+    "typescript": "^1.6.2",
+    "vinyl-fs": "^2.2.1"
+  },
+  "extensionDependencies": [
+    "vscode.csharp"
+  ],
+  "contributes": {
+    "commands": [
+      {
+        "command": "o.restart",
+        "title": "Restart OmniSharp",
+        "category": "OmniSharp"
+      },
+      {
+        "command": "o.pickProjectAndStart",
+        "title": "Select Project",
+        "category": "OmniSharp"
+      },
+      {
+        "command": "o.restore",
+        "title": "Restore Packages",
+        "category": "dnx"
+      },
+      {
+        "command": "o.execute",
+        "title": "Run Command",
+        "category": "dnx"
+      }
+    ],
+    "keybindings": [
+      {
+        "command": "o.showOutput",
+        "key": "Ctrl+L L",
+        "mac": "Cmd+L L"
+      },
+      {
+        "command": "o.execute",
+        "key": "Ctrl+L Shift+R",
+        "mac": "Cmd+L Shift+R"
+      },
+      {
+        "command": "o.execute-last-command",
+        "key": "Ctrl+L R",
+        "mac": "Cmd+L R"
+      },
+      {
+        "key": "shift+0",
+        "command": "^acceptSelectedSuggestion",
+        "when": "editorTextFocus && suggestWidgetVisible && editorLangId == 'csharp' && suggestionSupportsAcceptOnKey"
+      },
+      {
+        "key": "shift+9",
+        "command": "^acceptSelectedSuggestion",
+        "when": "editorTextFocus && suggestWidgetVisible && editorLangId == 'csharp' && suggestionSupportsAcceptOnKey"
+      },
+      {
+        "key": ".",
+        "command": "^acceptSelectedSuggestion",
+        "when": "editorTextFocus && suggestWidgetVisible && editorLangId == 'csharp' && suggestionSupportsAcceptOnKey"
+      }
+    ],
+    "snippets": [
+      {
+        "language": "csharp",
+        "path": "./snippets/csharp.json"
+      }
+    ]
+  }
 }