diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9b4dcce..b4b9486 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## Unreleased
 
+## [1.9.0] - 2019-03-13
+### Fixed
+- Reverts version 1.8.0 (#25)
+
 ## [1.8.0] - 2019-03-13
 ### Changed
 - Update base datascience-python version to v5.0.0 (#24)
diff --git a/Dockerfile b/Dockerfile
index 57dba1b..d3157e2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM civisanalytics/datascience-python:5.0.0
+FROM civisanalytics/datascience-python:4.2.0
 MAINTAINER support@civisanalytics.com
 
 # Version strings are set in datascience-python