diff --git a/docs/learn/index.html b/docs/learn/index.html
index 359bcd1..fe0dd57 100644
--- a/docs/learn/index.html
+++ b/docs/learn/index.html
@@ -3047,7 +3047,7 @@ <h3 id="determine-a-query-operation-type">Determine a Query Operation Type</h3>
 
 <p>Sometimes it can be very useful to know the type of query operation. For example you need it if you want to return a different response for subscription queries. <code class="language-plaintext highlighter-rouge">ast.Document</code> exposes <code class="language-plaintext highlighter-rouge">operationType</code> and <code class="language-plaintext highlighter-rouge">operation</code> for this.</p>
 
-<h2 id="performance-tips">Performance tips.</h2>
+<h2 id="performance-tips">Performance tips</h2>
 
 <p>Sangria is being used by several companies on production since several years and capable of handling a lot of traffic.</p>
 
diff --git a/learn.md b/learn.md
index c5bc242..82d144f 100644
--- a/learn.md
+++ b/learn.md
@@ -3006,7 +3006,7 @@ You can find a parser function in `sangria.introspection.IntrospectionParser`.
 
 Sometimes it can be very useful to know the type of query operation. For example you need it if you want to return a different response for subscription queries. `ast.Document` exposes `operationType` and `operation` for this.
 
-## Performance tips.
+## Performance tips
 
 Sangria is being used by several companies on production since several years and capable of handling a lot of traffic.