diff --git a/CHANGELOG.md b/CHANGELOG.md
index bf6b9ed..e975f0f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,12 +2,18 @@
 
 ## Contents
 
-- `IMTBX_v4.x.x_with-View-UI-Grppr.zip` - Everyting in one package
-- `IMTBX_v4.x.x_with-View-UI.zip` - IMTBX, Data Viewer, GUI. Grppr needs to be downloaded separately and put in the same folder as `ImtbxGrpprGui.exe`
+- `IMTBX_v4.x.x.zip` - Everyting in one package
 - `grppr-0.3.xx.jar` - Only the Grppr program
 
 ## Changelog
 
+### v4.4.5
+- IMTBX update to v4.5.0
+  - Option to skip some errors with mass calibration.
+- Grppr update to v0.3.20
+  - Several new options
+  - Bugfixes
+
 ### v4.4.1
 
 - IMTBX update to v4.3.0
diff --git a/ImsTopdownUi/imtbx-grppr-ui.props b/ImsTopdownUi/imtbx-grppr-ui.props
index b91a175..af00d17 100644
--- a/ImsTopdownUi/imtbx-grppr-ui.props
+++ b/ImsTopdownUi/imtbx-grppr-ui.props
@@ -1,4 +1,4 @@
-version.gui.published.last = 4.4.3
-version.imtbx.published.last = 4.3.0
-version.grppr.published.last = 0.3.18
+version.gui.published.last = 4.4.5
+version.imtbx.published.last = 4.5.0
+version.grppr.published.last = 0.3.20
 url.download = https://github.com/chhh/IMTBX/releases/latest