diff --git a/CHANGELOG.md b/CHANGELOG.md
index c83dcd84..5af773c5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## v1.23.1 (2024-04-29)
+
+### Bug Fixes and Other Changes
+
+ * Optional ctrl for `U`, add tests
+
 ## v1.23.0 (2024-04-22)
 
 ### Features
diff --git a/src/braket/default_simulator/_version.py b/src/braket/default_simulator/_version.py
index c202eff8..b354d03d 100644
--- a/src/braket/default_simulator/_version.py
+++ b/src/braket/default_simulator/_version.py
@@ -15,4 +15,4 @@
    Version number (major.minor.patch[-label])
 """
 
-__version__ = "1.23.1.dev0"
+__version__ = "1.23.1"