diff --git a/index.html b/index.html
index ba643ba..31369be 100644
--- a/index.html
+++ b/index.html
@@ -45,6 +45,7 @@
 			<ul>
 				<li><ziba-link>data science</ziba-link></li>
 				<li><ziba-link>data scientist</ziba-link></li>
+				<li><ziba-link>database</ziba-link></li>
 				<li><ziba-link>decision tree</ziba-link></li>
 				<li><ziba-link>deep learning</ziba-link></li>
 				<li><ziba-link>dirichlet distribution</ziba-link></li>
@@ -146,6 +147,7 @@
 			<ul>
 				<li><ziba-link>softmax</ziba-link></li>
 				<li><ziba-link>software</ziba-link></li>
+				<li><ziba-link>sql</ziba-link></li>
 				<li><ziba-link>stemming</ziba-link></li>
 				<li><ziba-link>supervised learning</ziba-link></li>
 				<li><ziba-link>support vector machine</ziba-link></li>