diff --git a/requirements.txt b/requirements.txt
index 1f86dcb..2a38f86 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 Sphinx==3.0.4
-http://github.com/SymbiFlow/sphinx_symbiflow_theme/archive/master.zip#sphinx-symbiflow-theme
+http://github.com/SymbiFlow/sphinx_symbiflow_theme/archive/chips.zip#sphinx-symbiflow-theme
 http://github.com/SymbiFlow/sphinx-verilog-domain/archive/master.zip#sphinx-verilog-domain
diff --git a/source/conf.py b/source/conf.py
index 65acc79..7035546 100644
--- a/source/conf.py
+++ b/source/conf.py
@@ -56,6 +56,8 @@ html_theme_options = {
     'repo_name': 'chipsalliance/f4pga-docs',
     'github_url' : 'https://github.com/chipsalliance/f4pga-docs',
     'globaltoc_collapse': True,
+    'color_primary': 'indigo',
+    'color_accent': 'blue',
 }
 
 # -- Options for LaTeX output --------------------------------------------------