diff --git a/.github/workflows/pxt-buildmain.yml b/.github/workflows/pxt-buildmain.yml
index da4efcf5dea..7d6de832f60 100644
--- a/.github/workflows/pxt-buildmain.yml
+++ b/.github/workflows/pxt-buildmain.yml
@@ -31,7 +31,7 @@ jobs:
         uses: actions/checkout@main
         with:
           repository: microsoft/pxt-arcade-sim
-          ref: v0.11.5
+          ref: v0.11.9
           token: ${{ secrets.GH_TOKEN }}
           path: node_modules/pxt-arcade-sim
       - name: pxt ci
diff --git a/.github/workflows/pxt-buildpush.yml b/.github/workflows/pxt-buildpush.yml
index 2d4756e1318..b0809aea2bc 100644
--- a/.github/workflows/pxt-buildpush.yml
+++ b/.github/workflows/pxt-buildpush.yml
@@ -31,7 +31,7 @@ jobs:
         uses: actions/checkout@main
         with:
           repository: microsoft/pxt-arcade-sim
-          ref: v0.11.5
+          ref: v0.11.9
           token: ${{ secrets.GH_TOKEN }}
           path: node_modules/pxt-arcade-sim
       - name: pxt ci
diff --git a/package.json b/package.json
index 505f4f67333..0b20c970054 100644
--- a/package.json
+++ b/package.json
@@ -32,10 +32,10 @@
     },
     "dependencies": {
         "pxt-common-packages": "10.4.10",
-        "pxt-core": "9.1.21"
+        "pxt-core": "9.1.22"
     },
     "optionalDependencies": {
-        "pxt-arcade-sim": "microsoft/pxt-arcade-sim.git#v0.11.5"
+        "pxt-arcade-sim": "microsoft/pxt-arcade-sim.git#v0.11.9"
     },
     "scripts": {
         "serve": "node node_modules/pxt-core/built/pxt.js serve",