diff --git a/package-lock.json b/package-lock.json
index 6e663c615..48ef26537 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20,7 +20,7 @@
         "@codemirror/view": "^6.26.3",
         "@emotion/react": "^11.11.4",
         "@emotion/styled": "^11.11.5",
-        "@microbit/microbit-connection": "^0.0.0-alpha.5",
+        "@microbit/microbit-connection": "^0.0.0-alpha.10",
         "@microbit/microbit-fs": "^0.9.2",
         "@sanity/block-content-to-react": "^3.0.0",
         "@sanity/image-url": "^1.0.1",
@@ -4020,12 +4020,13 @@
       }
     },
     "node_modules/@microbit/microbit-connection": {
-      "version": "0.0.0-alpha.5",
-      "resolved": "https://registry.npmjs.org/@microbit/microbit-connection/-/microbit-connection-0.0.0-alpha.5.tgz",
-      "integrity": "sha512-aibXtJ3rsNhb/z6xwDzKyG4GklAQ1gxyMK2VZFOoMBiw10jtcGj/VrblnDgrhjjMCICUWlgUnCzLGmi2WuFCsw==",
+      "version": "0.0.0-alpha.10",
+      "resolved": "https://registry.npmjs.org/@microbit/microbit-connection/-/microbit-connection-0.0.0-alpha.10.tgz",
+      "integrity": "sha512-O0jAgza3448k26R9/u7IUfMvtmBLkMVOdNQOIDIWckAeC+3AQy0YcpHm9sCXJNw8AEITL2whRc05hQjwigwTrg==",
       "dependencies": {
         "@microbit/microbit-universal-hex": "^0.2.2",
         "@types/web-bluetooth": "^0.0.20",
+        "crelt": "^1.0.6",
         "dapjs": "github:microbit-matt-hillsdon/dapjs#v2.3.0-microbit.2",
         "nrf-intel-hex": "^1.4.0"
       }
diff --git a/package.json b/package.json
index 377c6d871..248dde57b 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "@codemirror/view": "^6.26.3",
     "@emotion/react": "^11.11.4",
     "@emotion/styled": "^11.11.5",
-    "@microbit/microbit-connection": "^0.0.0-alpha.5",
+    "@microbit/microbit-connection": "^0.0.0-alpha.10",
     "@microbit/microbit-fs": "^0.9.2",
     "@sanity/block-content-to-react": "^3.0.0",
     "@sanity/image-url": "^1.0.1",