diff --git a/.changeset/proud-spies-train.md b/.changeset/proud-spies-train.md
new file mode 100644
index 000000000..10d332013
--- /dev/null
+++ b/.changeset/proud-spies-train.md
@@ -0,0 +1,5 @@
+---
+"@uppy/transloadit": patch
+---
+
+emit updated AssemblyState in 'transloadit:assembly-cancelled' event