diff --git a/package-lock.json b/package-lock.json
index 0a602f6d0..51c0b6f6f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -30988,7 +30988,7 @@
     },
     "plugins/plotly-express/src/js": {
       "name": "@deephaven/js-plugin-plotly-express",
-      "version": "0.3.2",
+      "version": "0.4.0",
       "license": "Apache-2.0",
       "dependencies": {
         "@deephaven/chart": "0.62.0",
diff --git a/plugins/plotly-express/setup.cfg b/plugins/plotly-express/setup.cfg
index 237bb3d1f..cb392eaf3 100644
--- a/plugins/plotly-express/setup.cfg
+++ b/plugins/plotly-express/setup.cfg
@@ -3,7 +3,7 @@ name = deephaven-plugin-plotly-express
 description = Deephaven Chart Plugin
 long_description = file: README.md
 long_description_content_type = text/markdown
-version = 0.3.0.dev0
+version = 0.4.0.dev0
 url = https://github.com/deephaven/deephaven-plugins
 project_urls =
     Source Code = https://github.com/deephaven/deephaven-plugins
diff --git a/plugins/plotly-express/src/js/package.json b/plugins/plotly-express/src/js/package.json
index 439099ec8..8ce1c385e 100644
--- a/plugins/plotly-express/src/js/package.json
+++ b/plugins/plotly-express/src/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@deephaven/js-plugin-plotly-express",
-  "version": "0.3.2",
+  "version": "0.4.0",
   "description": "Deephaven plotly express plugin",
   "keywords": [
     "Deephaven",