diff --git a/index.html b/index.html
index 742ff19..de5c68c 100644
--- a/index.html
+++ b/index.html
@@ -456,7 +456,7 @@ Asynchronous version of
 provided for compatibility with <a href="#API_getPNG"><code>getPNG</code></a>,
 which has no synchronous equivalent.
 </p>
-<p>The callback recieves an object containing:</p>
+<p>The callback receives an object containing:</p>
 <ul>
 <li><code>url</code>: The URL of the generated blob.</li>
 <li><code>latest</code>: True if the URL given is still valid; subsequent calls to this method will invalidate previous URLs.</li>
@@ -476,7 +476,7 @@ Generates a PNG image and returns a blob URL.
 <li><code>resolution</code>: Desired pixels-per-unit.</li>
 <li><code>size</code>: Optional width and/or height to render the image at (defaults to the unit size of the diagram). The final output will have size <code>width * resolution</code> &times; <code>height * resolution</code>.</li>
 </ul>
-<p>The callback recieves an object containing:</p>
+<p>The callback receives an object containing:</p>
 <ul>
 <li><code>url</code>: The URL of the generated blob.</li>
 <li><code>latest</code>: True if the URL given is still valid; subsequent calls to this method will invalidate previous URLs.</li>