diff --git a/docs/beta-ref.json b/docs/beta-ref.json
new file mode 100644
index 00000000..58f715cc
--- /dev/null
+++ b/docs/beta-ref.json
@@ -0,0 +1,3 @@
+{
+    "appref": "v"
+}
diff --git a/docs/index-ref.json b/docs/index-ref.json
new file mode 100644
index 00000000..97af347b
--- /dev/null
+++ b/docs/index-ref.json
@@ -0,0 +1,3 @@
+{
+    "appref": "v0.5.31"
+}
diff --git a/package.json b/package.json
index d6566839..877fe8b6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pxt-calliope",
-  "version": "0.5.29",
+  "version": "0.5.31",
   "description": "calliope target for PXT",
   "keywords": [
     "JavaScript",
@@ -29,7 +29,7 @@
     "typescript": "^1.8.7"
   },
   "dependencies": {
-    "pxt-core": "0.4.71",
+    "pxt-core": "0.5.2",
     "less": "^2.6.0",
     "semantic-ui-less": "^2.2.4"
   }