diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9601a57c775445d0f026ff813da1029dbb6fe784..b84f4c908f790751c2741b445b103437150cedc2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -35,6 +35,10 @@ release.
 
 ## [Unreleased]
 
+## [1.5.2]() 
+
+- Made gdal an optional dependency. [#186](https://github.com/USGS-Astrogeology/plio/pull/186)
+
 ## [1.5.1]()
 
 ### Fixed
diff --git a/setup.py b/setup.py
index 7b8190bc04e879cd86be241f9d0983d1a564f727..c63f2b88e96bea0119b2cf739baea8004f2e3a7b 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@ with open('README.md', 'r') as f:
 def setup_package():
     setup(
         name = "plio",
-        version = '1.5.1',
+        version = '1.5.2',
         author = "USGS Astrogeology",
         author_email = "jlaura@usgs.gov",
         description = ("I/O API to support planetary data formats."),