diff --git a/.Rbuildignore b/.Rbuildignore
index 1ab258c..baaf21b 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -7,3 +7,4 @@
 ^CONDUCT\.md$
 ^codecov\.yml$
 ^\.lintr$
+^opensensmapr_.*\.tar\.gz$
diff --git a/CHANGES.md b/CHANGES.md
index daf5630..afe8018 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,6 +1,11 @@
 # opensensmapr changelog
 This project does its best to adhere to semantic versioning.
 
+### 2018-06-07: v0.4.1
+- fix `osem_as_measurements()` returning wrong classes
+- improve vignettes
+- be on CRAN eventually.. hopefully??
+
 ### 2018-05-25: v0.4.0
 - add caching feature for requests; see vignette osem-serialization
 - add vignette osem-serialization
diff --git a/DESCRIPTION b/DESCRIPTION
index b33a19e..af1bb57 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: opensensmapr
 Type: Package
 Title: Client for the Data API of openSenseMap.org
-Version: 0.4.0
+Version: 0.4.1
 URL: http://github.com/noerw/opensensmapR
 BugReports: http://github.com/noerw/opensensmapR/issues
 Imports: