diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index d83dce6..2a58fd9 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.4.11
+current_version = 1.5.0
 commit = True
 tag = True
 
diff --git a/RELEASE.md b/RELEASE.md
index 04740e6..05bcd6d 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -13,9 +13,9 @@ Or
 ## Manual bump
  * Update bqplot-image-gl/_version.py
  * Update js/package.json
- * Add and commit, e.g. `git add -u; git commit -m 'Update to version 1.4.11'`
- * Tag: `git tag 1.4.11`
- * Release using push: `git push upstream master 1.4.11`
+ * Add and commit, e.g. `git add -u; git commit -m 'Update to version 1.5.0'`
+ * Tag: `git tag 1.5.0`
+ * Release using push: `git push upstream master 1.5.0`
 
 # Manual:
 ## To release a new version of bqplot-image-gl on PyPI:
diff --git a/bqplot_image_gl/_version.py b/bqplot_image_gl/_version.py
index a314565..77f1c8e 100644
--- a/bqplot_image_gl/_version.py
+++ b/bqplot_image_gl/_version.py
@@ -1 +1 @@
-__version__ = '1.4.11'
+__version__ = '1.5.0'
diff --git a/js/package.json b/js/package.json
index c403357..82e1cba 100644
--- a/js/package.json
+++ b/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bqplot-image-gl",
-  "version": "1.4.11",
+  "version": "1.5.0",
   "description": "An ipywidget image widget for astronomical purposes",
   "author": "Maarten A. Breddels",
   "main": "lib/index.js",