diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 8b459eb4d..563b9de52 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0, 3, 0, 'beta', 0
+current_version = 0, 3, 0, 'candidate', 0
 commit = False
 tag = False
 parse = (?P<major>\d+)\,\ (?P<minor>\d+)\,\ (?P<patch>\d+)\,\ \'(?P<release>\S+)\'\,\ (?P<build>\d+)
diff --git a/app/package.json b/app/package.json
index 52e13bcc2..373a2bae2 100644
--- a/app/package.json
+++ b/app/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@retrolab/app",
-  "version": "0.3.0-beta.0",
+  "version": "0.3.0-rc.0",
   "private": true,
   "scripts": {
     "build": "webpack",
@@ -72,14 +72,14 @@
     "@lumino/signaling": "~1.7.0",
     "@lumino/virtualdom": "~1.11.0",
     "@lumino/widgets": "~1.23.0",
-    "@retrolab/application": "~0.3.0-beta.0",
-    "@retrolab/application-extension": "~0.3.0-beta.0",
-    "@retrolab/docmanager-extension": "~0.3.0-beta.0",
-    "@retrolab/help-extension": "~0.3.0-beta.0",
-    "@retrolab/notebook-extension": "~0.3.0-beta.0",
-    "@retrolab/terminal-extension": "~0.3.0-beta.0",
-    "@retrolab/tree-extension": "~0.3.0-beta.0",
-    "@retrolab/ui-components": "~0.3.0-beta.0",
+    "@retrolab/application": "~0.3.0-rc.0",
+    "@retrolab/application-extension": "~0.3.0-rc.0",
+    "@retrolab/docmanager-extension": "~0.3.0-rc.0",
+    "@retrolab/help-extension": "~0.3.0-rc.0",
+    "@retrolab/notebook-extension": "~0.3.0-rc.0",
+    "@retrolab/terminal-extension": "~0.3.0-rc.0",
+    "@retrolab/tree-extension": "~0.3.0-rc.0",
+    "@retrolab/ui-components": "~0.3.0-rc.0",
     "react": "~17.0.2",
     "react-dom": "~17.0.2"
   },
@@ -108,14 +108,14 @@
     "@jupyterlab/theme-light-extension": "^3.1.0-rc.1",
     "@jupyterlab/tooltip-extension": "^3.1.0-rc.1",
     "@jupyterlab/vega5-extension": "^3.1.0-rc.1",
-    "@retrolab/application": "^0.3.0-beta.0",
-    "@retrolab/application-extension": "^0.3.0-beta.0",
-    "@retrolab/docmanager-extension": "^0.3.0-beta.0",
-    "@retrolab/help-extension": "^0.3.0-beta.0",
-    "@retrolab/notebook-extension": "^0.3.0-beta.0",
-    "@retrolab/terminal-extension": "^0.3.0-beta.0",
-    "@retrolab/tree-extension": "^0.3.0-beta.0",
-    "@retrolab/ui-components": "^0.3.0-beta.0"
+    "@retrolab/application": "^0.3.0-rc.0",
+    "@retrolab/application-extension": "^0.3.0-rc.0",
+    "@retrolab/docmanager-extension": "^0.3.0-rc.0",
+    "@retrolab/help-extension": "^0.3.0-rc.0",
+    "@retrolab/notebook-extension": "^0.3.0-rc.0",
+    "@retrolab/terminal-extension": "^0.3.0-rc.0",
+    "@retrolab/tree-extension": "^0.3.0-rc.0",
+    "@retrolab/ui-components": "^0.3.0-rc.0"
   },
   "devDependencies": {
     "@jupyterlab/builder": "^3.1.0-rc.1",
diff --git a/buildutils/package.json b/buildutils/package.json
index 2407ebaf0..b0ebcac5b 100644
--- a/buildutils/package.json
+++ b/buildutils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@retrolab/buildutils",
-  "version": "0.3.0-beta.0",
+  "version": "0.3.0-rc.0",
   "private": true,
   "description": "RetroLab - Build Utilities",
   "homepage": "https://github.com/jupyterlab/retrolab",
diff --git a/packages/_metapackage/package.json b/packages/_metapackage/package.json
index b41426851..ff52dad57 100644
--- a/packages/_metapackage/package.json
+++ b/packages/_metapackage/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@retrolab/metapackage",
   "private": true,
-  "version": "0.3.0-beta.0",
+  "version": "0.3.0-rc.0",
   "description": "RetroLab - Metapackage",
   "homepage": "https://github.com/jupyterlab/retrolab",
   "bugs": {
diff --git a/packages/application-extension/package.json b/packages/application-extension/package.json
index 4300b3d12..5df34f875 100644
--- a/packages/application-extension/package.json
+++ b/packages/application-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@retrolab/application-extension",
-  "version": "0.3.0-beta.0",
+  "version": "0.3.0-rc.0",
   "description": "RetroLab - Application Extension",
   "homepage": "https://github.com/jupyterlab/retrolab",
   "bugs": {
@@ -51,8 +51,8 @@
     "@jupyterlab/settingregistry": "^3.1.0-rc.1",
     "@jupyterlab/translation": "^3.1.0-rc.1",
     "@lumino/widgets": "^1.23.0",
-    "@retrolab/application": "^0.3.0-beta.0",
-    "@retrolab/ui-components": "^0.3.0-beta.0"
+    "@retrolab/application": "^0.3.0-rc.0",
+    "@retrolab/ui-components": "^0.3.0-rc.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
diff --git a/packages/application/package.json b/packages/application/package.json
index 8f37ef1d9..2b48660a3 100644
--- a/packages/application/package.json
+++ b/packages/application/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@retrolab/application",
-  "version": "0.3.0-beta.0",
+  "version": "0.3.0-rc.0",
   "description": "RetroLab - Application",
   "homepage": "https://github.com/jupyterlab/retrolab",
   "bugs": {
diff --git a/packages/docmanager-extension/package.json b/packages/docmanager-extension/package.json
index cd58be73d..4fc264937 100644
--- a/packages/docmanager-extension/package.json
+++ b/packages/docmanager-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@retrolab/docmanager-extension",
-  "version": "0.3.0-beta.0",
+  "version": "0.3.0-rc.0",
   "description": "RetroLab - Document Manager Extension",
   "homepage": "https://github.com/jupyterlab/retrolab",
   "bugs": {
diff --git a/packages/help-extension/package.json b/packages/help-extension/package.json
index 255f148a2..3408d9097 100644
--- a/packages/help-extension/package.json
+++ b/packages/help-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@retrolab/help-extension",
-  "version": "0.3.0-beta.0",
+  "version": "0.3.0-rc.0",
   "description": "RetroLab - Help Extension",
   "homepage": "https://github.com/jupyterlab/retrolab",
   "bugs": {
@@ -42,7 +42,7 @@
     "@jupyterlab/application": "^3.1.0-rc.1",
     "@jupyterlab/apputils": "^3.1.0-rc.1",
     "@jupyterlab/mainmenu": "^3.1.0-rc.1",
-    "@retrolab/ui-components": "^0.3.0-beta.0"
+    "@retrolab/ui-components": "^0.3.0-rc.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
diff --git a/packages/lab-extension/package.json b/packages/lab-extension/package.json
index 7f72b044b..a21cc3541 100644
--- a/packages/lab-extension/package.json
+++ b/packages/lab-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@retrolab/lab-extension",
-  "version": "0.3.0-beta.0",
+  "version": "0.3.0-rc.0",
   "description": "RetroLab - Lab Extension",
   "homepage": "https://github.com/jupyterlab/retrolab",
   "bugs": {
@@ -53,7 +53,7 @@
     "@jupyterlab/notebook": "^3.1.0-rc.1",
     "@lumino/commands": "^1.15.0",
     "@lumino/disposable": "^1.7.0",
-    "@retrolab/ui-components": "^0.3.0-beta.0"
+    "@retrolab/ui-components": "^0.3.0-rc.0"
   },
   "devDependencies": {
     "@jupyterlab/builder": "^3.1.0-rc.1",
diff --git a/packages/notebook-extension/package.json b/packages/notebook-extension/package.json
index 18eba99c2..ef066365c 100644
--- a/packages/notebook-extension/package.json
+++ b/packages/notebook-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@retrolab/notebook-extension",
-  "version": "0.3.0-beta.0",
+  "version": "0.3.0-rc.0",
   "description": "RetroLab - Notebook Extension",
   "homepage": "https://github.com/jupyterlab/retrolab",
   "bugs": {
@@ -45,7 +45,7 @@
     "@jupyterlab/notebook": "^3.1.0-rc.1",
     "@lumino/polling": "^1.6.0",
     "@lumino/widgets": "^1.23.0",
-    "@retrolab/application": "^0.3.0-beta.0"
+    "@retrolab/application": "^0.3.0-rc.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
diff --git a/packages/terminal-extension/package.json b/packages/terminal-extension/package.json
index 323d51fbd..d29efcd90 100644
--- a/packages/terminal-extension/package.json
+++ b/packages/terminal-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@retrolab/terminal-extension",
-  "version": "0.3.0-beta.0",
+  "version": "0.3.0-rc.0",
   "description": "RetroLab - Terminal Extension",
   "homepage": "https://github.com/jupyterlab/retrolab",
   "bugs": {
diff --git a/packages/tree-extension/package.json b/packages/tree-extension/package.json
index bccc1f98c..6fa1d1786 100644
--- a/packages/tree-extension/package.json
+++ b/packages/tree-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@retrolab/tree-extension",
-  "version": "0.3.0-beta.0",
+  "version": "0.3.0-rc.0",
   "description": "RetroLab - Tree Extension",
   "homepage": "https://github.com/jupyterlab/retrolab",
   "bugs": {
@@ -53,7 +53,7 @@
     "@lumino/algorithm": "^1.6.0",
     "@lumino/commands": "^1.15.0",
     "@lumino/widgets": "^1.23.0",
-    "@retrolab/application": "^0.3.0-beta.0"
+    "@retrolab/application": "^0.3.0-rc.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
diff --git a/packages/ui-components/package.json b/packages/ui-components/package.json
index bf9140ec5..955b4bfe0 100644
--- a/packages/ui-components/package.json
+++ b/packages/ui-components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@retrolab/ui-components",
-  "version": "0.3.0-beta.0",
+  "version": "0.3.0-rc.0",
   "description": "RetroLab - UI components",
   "homepage": "https://github.com/jupyterlab/retrolab",
   "bugs": {
diff --git a/retrolab/_version.py b/retrolab/_version.py
index 9fc38cdd8..1734f264c 100644
--- a/retrolab/_version.py
+++ b/retrolab/_version.py
@@ -12,7 +12,7 @@ VersionInfo = namedtuple('VersionInfo', [
 ])
 
 # DO NOT EDIT THIS DIRECTLY!  It is managed by bumpversion
-version_info = VersionInfo(0, 3, 0, 'beta', 0)
+version_info = VersionInfo(0, 3, 0, 'candidate', 0)
 
 _specifier_ = {'alpha': 'a', 'beta': 'b', 'candidate': 'rc', 'final': ''}