diff --git a/.changeset/young-wolves-grow.md b/.changeset/young-wolves-grow.md
new file mode 100644
index 0000000000..6d4dd13d15
--- /dev/null
+++ b/.changeset/young-wolves-grow.md
@@ -0,0 +1,5 @@
+---
+"jspsych": patch
+---
+
+Improve type definitions for randomization module