diff --git a/conf.py b/conf.py
index 563a64eeb..8118ac84f 100644
--- a/conf.py
+++ b/conf.py
@@ -55,6 +55,7 @@
     'logo_only': True,
     'includehidden': False
 }
+html_use_index = False
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['guide/_templates']
diff --git a/guide/_static/css/custom.css b/guide/_static/css/custom.css
index 54e980cf7..6c2a25a72 100644
--- a/guide/_static/css/custom.css
+++ b/guide/_static/css/custom.css
@@ -12,7 +12,7 @@
   --light-blue: #42C0FF;
   --orange: #FAA119;
   --yellow: #ffdd31;
-  --search-section-height: 150px; /* Adjust this value to match your search section height */
+  --search-section-height: 500px; /* Adjust this value to match your search section height */
 }
 
 /* Apply Poppins font to text elements (excluding code blocks) */
diff --git a/guide/requirements.txt b/guide/requirements.txt
index a600036f6..192d6c3c5 100644
--- a/guide/requirements.txt
+++ b/guide/requirements.txt
@@ -1,3 +1,3 @@
 Sphinx==6.2.1
-sphinx-rtd-theme==1.2.2
+sphinx-rtd-theme==3.1.0
 sphinx_copybutton