diff --git a/CHANGELOG.md b/CHANGELOG.md
index 34decc6fa..9601a57c7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -35,6 +35,8 @@ release.
 
 ## [Unreleased]
 
+## [1.5.1]()
+
 ### Fixed
 - Updated documentation string for `compute_covariance`. [#177](https://github.com/USGS-Astrogeology/plio/pull/177)
 - Improved performance of `to_isis`. [#181](https://github.com/USGS-Astrogeology/plio/issues/181)
diff --git a/setup.py b/setup.py
index e16eade70..56c6c4341 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 def setup_package():
     setup(
         name = "plio",
-        version = '1.5.0',
+        version = '1.5.1',
         author = "USGS Astrogeology",
         author_email = "jlaura@usgs.gov",
         description = ("I/O API to support planetary data formats."),