diff --git a/README.md b/README.md
index f615630de..67139e226 100755
--- a/README.md
+++ b/README.md
@@ -109,6 +109,7 @@ Release Notes and History
 
 | <div style="width:300%">[Versions]</div> | Update summary   |
 | ------------- | ------------------------------------- |
+| [v3.4.1]      | Technical update
 | [v3.4]        | Technical update: Modes of variability [xCDAT](https://xcdat.readthedocs.io/en/latest/) conversion
 | [v3.3.4]      | Technical update
 | [v3.3.3]      | Technical update
@@ -142,6 +143,7 @@ Release Notes and History
 
 
 [Versions]: https://github.com/PCMDI/pcmdi_metrics/releases
+[v3.4.1]: https://github.com/PCMDI/pcmdi_metrics/releases/tag/v3.4.1
 [v3.4]: https://github.com/PCMDI/pcmdi_metrics/releases/tag/v3.4
 [v3.3.4]: https://github.com/PCMDI/pcmdi_metrics/releases/tag/v3.3.4
 [v3.3.3]: https://github.com/PCMDI/pcmdi_metrics/releases/tag/v3.3.3
diff --git a/setup.py b/setup.py
index a38eb4f46..ddd0b9c6b 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@
 else:
     install_dev = False
 
-release_version = "3.4"
+release_version = "3.4.1"
 
 p = subprocess.Popen(
     ("git", "describe", "--tags"),