diff --git a/package.json b/package.json
index 2adf05cb..50c4f6d5 100644
--- a/package.json
+++ b/package.json
@@ -32,20 +32,19 @@
     "docs/static/icons/favicon.ico"
   ],
   "devDependencies": {
-    "typescript": "2.6.1",
-    "less": "2.7.3",
-    "semantic-ui-less": "2.2.14",
-    "react": "16.8.3",
-    "@types/react": "16.0.25",
-    "@types/react-dom": "16.0.3",
     "@types/bluebird": "2.0.33",
-    "@types/jquery": "3.2.16",
     "@types/marked": "0.3.0",
     "@types/node": "8.0.53",
-    "@types/web-bluetooth": "0.0.4"
+    "@types/react": "16.0.25",
+    "@types/react-dom": "16.0.3",
+    "@types/web-bluetooth": "0.0.4",
+    "less": "2.7.3",
+    "react": "16.8.3",
+    "semantic-ui-less": "2.2.14",
+    "typescript": "^3.7.5"
   },
   "dependencies": {
     "pxt-common-packages": "6.18.4",
-    "pxt-core": "5.32.23"
+    "pxt-core": "5.33.4"
   }
 }
diff --git a/sim/tsconfig.json b/sim/tsconfig.json
index 98cd3cb1..d043b21a 100644
--- a/sim/tsconfig.json
+++ b/sim/tsconfig.json
@@ -9,7 +9,7 @@
         "newLine": "LF",
         "sourceMap": false,
         "lib": ["dom", "dom.iterable", "scripthost", "es6"],
-        "types": ["jquery", "bluebird"],
+        "types": ["bluebird"],
         "typeRoots": ["../node_modules/@types"]
     }
 }
diff --git a/sim/visuals/neopixel.ts b/sim/visuals/neopixel.ts
index 6e3ff3a2..68b2916d 100644
--- a/sim/visuals/neopixel.ts
+++ b/sim/visuals/neopixel.ts
@@ -128,7 +128,7 @@ namespace pxsim.visuals {
                     this.canvas.appendChild(pixel.el);
                 }
                 let color = colors[i];
-                pixel.setRgb(color);
+                pixel.setRgb([color[0], color[1], color[2]]);
             }
 
             //show the canvas if it's hidden