diff --git a/CHANGELOG.md b/CHANGELOG.md
index c7fdf5b3..d4539d7c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,11 +2,12 @@
 
 Observes [Semantic Versioning](https://semver.org/spec/v2.0.0.html) standard and [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) convention.
 
-## [0.1.0a3] - 2021-05-03
+
+## [0.1.0a4] - 2021-05-04
 ### Added 
 + Added GitHub Action release process
 + `probe` and `ephys` elements
 + Readers for: `SpikeGLX`, `Open Ephys`, `Kilosort`
 + Probe table supporting: Neuropixels probes 1.0 - 3A, 1.0 - 3B, 2.0 - SS, 2.0 - MS
 
-[0.1.0a3]: https://github.com/datajoint/element-array-ephys/releases/tag/0.1.0a3
+[0.1.0a4]: https://github.com/datajoint/element-array-ephys/releases/tag/0.1.0a4
diff --git a/element_array_ephys/version.py b/element_array_ephys/version.py
index ed63f796..108d699e 100644
--- a/element_array_ephys/version.py
+++ b/element_array_ephys/version.py
@@ -1,2 +1,2 @@
 """Package metadata."""
-__version__ = '0.1.0a3'
\ No newline at end of file
+__version__ = '0.1.0a4'
\ No newline at end of file