diff --git a/package-lock.json b/package-lock.json
index 79aea372f3..e85ff90027 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2032,9 +2032,9 @@
       "dev": true
     },
     "tslint": {
-      "version": "5.14.0",
-      "resolved": "https://registry.npmjs.org/tslint/-/tslint-5.14.0.tgz",
-      "integrity": "sha512-IUla/ieHVnB8Le7LdQFRGlVJid2T/gaJe5VkjzRVSRR6pA2ODYrnfR1hmxi+5+au9l50jBwpbBL34txgv4NnTQ==",
+      "version": "5.15.0",
+      "resolved": "https://registry.npmjs.org/tslint/-/tslint-5.15.0.tgz",
+      "integrity": "sha512-6bIEujKR21/3nyeoX2uBnE8s+tMXCQXhqMmaIPJpHmXJoBJPTLcI7/VHRtUwMhnLVdwLqqY3zmd8Dxqa5CVdJA==",
       "dev": true,
       "requires": {
         "babel-code-frame": "^6.22.0",
@@ -2043,7 +2043,7 @@
         "commander": "^2.12.1",
         "diff": "^3.2.0",
         "glob": "^7.1.1",
-        "js-yaml": "^3.7.0",
+        "js-yaml": "^3.13.0",
         "minimatch": "^3.0.4",
         "mkdirp": "^0.5.1",
         "resolve": "^1.3.2",
@@ -2053,10 +2053,20 @@
       },
       "dependencies": {
         "commander": {
-          "version": "2.19.0",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.19.0.tgz",
-          "integrity": "sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg==",
+          "version": "2.20.0",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
+          "integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==",
           "dev": true
+        },
+        "js-yaml": {
+          "version": "3.13.1",
+          "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
+          "integrity": "sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==",
+          "dev": true,
+          "requires": {
+            "argparse": "^1.0.7",
+            "esprima": "^4.0.0"
+          }
         }
       }
     },
diff --git a/package.json b/package.json
index f065bd8367..a68559ea6a 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "mocha-multi-reporters": "~1.1.7",
     "rewire": "~4.0.1",
     "sinon": "~7.3.1",
-    "tslint": "~5.14.0",
+    "tslint": "~5.15.0",
     "typescript": "~3.4.3",
     "vsce": "~1.59.0",
     "vscode": "~1.1.33"
diff --git a/src/features/ExtensionCommands.ts b/src/features/ExtensionCommands.ts
index 430ff9a2d1..23c3159b68 100644
--- a/src/features/ExtensionCommands.ts
+++ b/src/features/ExtensionCommands.ts
@@ -20,7 +20,7 @@ export interface IExtensionCommandQuickPickItem extends vscode.QuickPickItem {
 }
 
 export const InvokeExtensionCommandRequestType =
-    new RequestType<InvokeExtensionCommandRequestArguments, void, void, void>(
+    new RequestType<IInvokeExtensionCommandRequestArguments, void, void, void>(
         "powerShell/invokeExtensionCommand");
 
 export interface IEditorContext {
@@ -31,7 +31,7 @@ export interface IEditorContext {
     selectionRange: Range;
 }
 
-export interface InvokeExtensionCommandRequestArguments {
+export interface IInvokeExtensionCommandRequestArguments {
     name: string;
     context: IEditorContext;
 }
@@ -285,7 +285,7 @@ export class ExtensionCommandsFeature implements IFeature {
                 a.name.localeCompare(b.name));
     }
 
-    private showExtensionCommands(client: LanguageClient): Thenable<InvokeExtensionCommandRequestArguments> {
+    private showExtensionCommands(client: LanguageClient): Thenable<IInvokeExtensionCommandRequestArguments> {
 
         // If no extension commands are available, show a message
         if (this.extensionCommands.length === 0) {