diff --git a/package.json b/package.json
index 6cfe8e92b3ebe5a3063913bce9382f3fee4349ae..f753567ccfeb25fe361ad13ff84ffc1a47da170b 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "gulp-rename": "^1.2.0",
     "gulp-sourcemaps": "^1.6.0",
     "gulp-symdest": "^1.0.0",
-    "gulp-tsb": "~1.7.3",
+    "gulp-tsb": "^1.10.0",
     "gulp-tslint": "^4.3.0",
     "gulp-uglify": "^1.4.1",
     "gulp-util": "^3.0.6",
diff --git a/src/vs/base/browser/builder.ts b/src/vs/base/browser/builder.ts
index 8ebc8f06d07a00eed2c4cd125a710be7f09611ed..79e7f4fc9fc93368eeb8f4cd4e85deea3bd4c61f 100644
--- a/src/vs/base/browser/builder.ts
+++ b/src/vs/base/browser/builder.ts
@@ -185,7 +185,7 @@ export class Builder implements IDisposable {
 		}
 
 		// Wrap Builders into MultiBuilder
-		let builders = [this];
+		let builders:Builder[] = [this];
 		if (obj instanceof MultiBuilder) {
 			for (let i = 0; i < (<MultiBuilder>obj).length; i++) {
 				builders.push((<MultiBuilder>obj).item(i));
@@ -1918,7 +1918,7 @@ export class MultiBuilder extends Builder {
 		// Mixin Builder functions to operate on all builders
 		let $outer = this;
 		let propertyFn = (prop: string) => {
-			(<any>$outer)[prop] = function() {
+			(<any>$outer)[prop] = function(): any {
 				let args = Array.prototype.slice.call(arguments);
 
 				let returnValues: any[];
diff --git a/src/vs/languages/css/common/parser/cssNodes.ts b/src/vs/languages/css/common/parser/cssNodes.ts
index 296e5054a65ac560dafcee225c028e7312f549d3..8546cde0c73cfbc330a39043c61f13022fe02cc9 100644
--- a/src/vs/languages/css/common/parser/cssNodes.ts
+++ b/src/vs/languages/css/common/parser/cssNodes.ts
@@ -173,7 +173,7 @@ export class Node {
 	}
 
 	public getTextProvider(): ITextProvider {
-		var node = this;
+		var node: Node = this;
 		while (node && !node.textProvider) {
 			node = node.parent;
 		}
@@ -349,7 +349,7 @@ export class Node {
 	}
 
 	public findParent(type:NodeType):Node {
-		var result = this;
+		var result: Node = this;
 		while (result && result.type !== type) {
 			result = result.parent;
 		}
diff --git a/src/vs/languages/css/common/services/selectorPrinting.ts b/src/vs/languages/css/common/services/selectorPrinting.ts
index 8971395174bfcb63e28bf87e93b25e10f5157eff..b65b2af6958cea175fb268600cb64b4d881c653f 100644
--- a/src/vs/languages/css/common/services/selectorPrinting.ts
+++ b/src/vs/languages/css/common/services/selectorPrinting.ts
@@ -31,8 +31,8 @@ export class Element implements IElement {
 		this.children.push(child);
 	}
 
-	public findRoot() : Element {
-		var curr = this;
+	public findRoot(): Element {
+		var curr: Element = this;
 		while (curr.parent && !(curr.parent instanceof RootElement)) {
 			curr = curr.parent;
 		}