diff --git a/src/components/app/App.jsx b/src/components/app/App.jsx
index fb52cf5c..b499e3e6 100644
--- a/src/components/app/App.jsx
+++ b/src/components/app/App.jsx
@@ -135,51 +135,51 @@ const App = props => {
 
               { /* Concept Home */ }
               <Route
-                path="/users/:user([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept"
+                path="/users/:user([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/:conceptVersion([a-zA-Z0-9\-\.\_\@]+)/$cascade"
                 component={SourceHome}
               />
               <Route
-                path="/orgs/:org([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept"
+                path="/orgs/:org([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/:conceptVersion([a-zA-Z0-9\-\.\_\@]+)/$cascade"
                 component={SourceHome}
               />
               <Route
-                path="/users/:user([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/$cascade"
+                path="/users/:user([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/:conceptVersion([a-zA-Z0-9\-\.\_\@]+)"
                 component={SourceHome}
               />
               <Route
-                path="/orgs/:org([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/$cascade"
+                path="/orgs/:org([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/:conceptVersion([a-zA-Z0-9\-\.\_\@]+)"
                 component={SourceHome}
               />
               <Route
-                path="/users/:user([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/:version([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept"
+                path="/users/:user([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/$cascade"
                 component={SourceHome}
               />
               <Route
-                path="/orgs/:org([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/:version([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept"
+                path="/orgs/:org([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/$cascade"
                 component={SourceHome}
               />
               <Route
-                path="/users/:user([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/:version([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/$cascade"
+                path="/users/:user([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept"
                 component={SourceHome}
               />
               <Route
-                path="/orgs/:org([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/:version([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/$cascade"
+                path="/orgs/:org([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept"
                 component={SourceHome}
               />
               <Route
-                path="/users/:user([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/:conceptVersion([a-zA-Z0-9\-\.\_\@]+)"
+                path="/users/:user([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/:version([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept"
                 component={SourceHome}
               />
               <Route
-                path="/orgs/:org([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/:conceptVersion([a-zA-Z0-9\-\.\_\@]+)"
+                path="/orgs/:org([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/:version([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept"
                 component={SourceHome}
               />
               <Route
-                path="/users/:user([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/:conceptVersion([a-zA-Z0-9\-\.\_\@]+)/$cascade"
+                path="/users/:user([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/:version([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/$cascade"
                 component={SourceHome}
               />
               <Route
-                path="/orgs/:org([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/:conceptVersion([a-zA-Z0-9\-\.\_\@]+)/$cascade"
+                path="/orgs/:org([a-zA-Z0-9\-\.\_\@]+)/sources/:source([a-zA-Z0-9\-\.\_\@]+)/:version([a-zA-Z0-9\-\.\_\@]+)/concepts/:concept/$cascade"
                 component={SourceHome}
               />
               <Route
diff --git a/src/components/concepts/ConceptHome.jsx b/src/components/concepts/ConceptHome.jsx
index 6ab661dc..d288c51b 100644
--- a/src/components/concepts/ConceptHome.jsx
+++ b/src/components/concepts/ConceptHome.jsx
@@ -62,7 +62,12 @@ class ConceptHome extends React.Component {
       let URL = parent.url
       if(version && version !== 'HEAD')
         URL += version + '/'
+      else
+        URL
       URL += `concepts/${encodeURIComponent(concept.id)}/`
+      if(match?.params?.conceptVersion)
+        URL += `${match.params.conceptVersion}/`
+
       return URL
     }