diff --git a/docs/conf.py b/docs/conf.py
index 4bdfdda..1691ed8 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -284,3 +284,7 @@ texinfo_documents = [
 
 # If true, do not generate a @detailmenu in the "Top" node's menu.
 #texinfo_no_detailmenu = False
+
+# sphinx-contrib configurations
+inline_highlight_respect_highlight = True
+inline_highlight_literals = True
diff --git a/docs/requirements.txt b/docs/requirements.txt
new file mode 100644
index 0000000..efd165b
--- /dev/null
+++ b/docs/requirements.txt
@@ -0,0 +1 @@
+sphinxcontrib-inlinesyntaxhighlight==0.2