Fixed link

Author: bvaughn

content/docs/strict-mode.md

@@ -24,7 +24,7 @@ Additional functionality will be added with future releases of React.
 
 ### Identifying unsafe lifecycles
 
-As explained [in this blog post](/blog/2018/02/07/update-on-async-rendering.html), certain legacy lifecycle methods are unsafe for use in async React applications. However, if your application uses third party libraries, it can be difficult to ensure that these lifecycles aren't being used. Fortunately, strict mode can help with this!
+As explained [in this blog post](/blog/2018/03/27/update-on-async-rendering.html), certain legacy lifecycle methods are unsafe for use in async React applications. However, if your application uses third party libraries, it can be difficult to ensure that these lifecycles aren't being used. Fortunately, strict mode can help with this!
 
 When strict mode is enabled, React compiles a list of all class components using the unsafe lifecycles, and logs a warning message with information about these components, like so: