diff --git a/VERSIONS.md b/VERSIONS.md
index 48c9dc94..ce536750 100644
--- a/VERSIONS.md
+++ b/VERSIONS.md
@@ -1,6 +1,6 @@
 ## Note on version numbers of Mass
 
-**0.8.4** May, 2024-
+**0.8.4** June 5, 2024
 
 * Fix test failures on Py 3.12: store HDF5 cache files in temp directories, so tests don't share them. (issue 272). Correctly use the modern `tempfile` library's API.
 * Use dynamic version numbering through setuptools-scm (issue 287).