diff --git a/.github/workflows/build-explorer.yml b/.github/workflows/build-explorer.yml
index b0e70da..3691b11 100644
--- a/.github/workflows/build-explorer.yml
+++ b/.github/workflows/build-explorer.yml
@@ -68,14 +68,14 @@ jobs:
         run: |
           git checkout package.json
           npx rdf add file "https://brickschema.org/schema/1.3/Brick" vocab/brick/1.3/Brick.ttl
-          npx rdf make site --output public/1.3
+          npx rdf make site --output public/1.3 -B 1.3
 
       - name: handle brick 1.4
         working-directory: rdf-toolkit/explorer
         run: |
           git checkout package.json
           npx rdf add file "https://brickschema.org/schema/1.4/Brick" vocab/brick/1.4/Brick.ttl
-          npx rdf make site --output public/1.4
+          npx rdf make site --output public/1.4 -B 1.3
 
       - name: rewrite for version navigation
         run: find rdf-toolkit/explorer/public -name "*.html" | xargs -n 1 -P 4 uv run add_versions.py
diff --git a/add_versions.py b/add_versions.py
index 4025b04..c540010 100644
--- a/add_versions.py
+++ b/add_versions.py
@@ -30,8 +30,11 @@
 
 select = soup.new_tag('select', {'id': 'brickVersionDropdown'})
 # create options
-for text, href in links.items():
-    option = soup.new_tag('option', value=href)
+for index,(text, href) in enumerate(links.items()):
+    if index == 0:
+        option = soup.new_tag('option', value=href, selected='selected')
+    else:
+        option = soup.new_tag('option', value=href)
     option.string = text
     select.append(option)
 # add the brickVersionDropdown id to the select tag