diff --git a/package-lock.json b/package-lock.json
index 790b583bd..7121734c3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -35093,7 +35093,7 @@
     },
     "plugins/plotly-express/src/js": {
       "name": "@deephaven/js-plugin-plotly-express",
-      "version": "0.6.0",
+      "version": "0.6.0-dev0",
       "license": "Apache-2.0",
       "dependencies": {
         "@deephaven/chart": "0.64.0",
diff --git a/plugins/plotly-express/setup.cfg b/plugins/plotly-express/setup.cfg
index a90eda643..b6456e15f 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 = 0.6.0
+version = 0.6.0.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 ef4bd03cb..09c5f1ec2 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": "0.6.0",
+  "version": "0.6.0-dev0",
   "description": "Deephaven plotly express plugin",
   "keywords": [
     "Deephaven",