diff --git a/_data/authors.yml b/_data/authors.yml
index 1a0d0ed778..17368b1939 100644
--- a/_data/authors.yml
+++ b/_data/authors.yml
@@ -637,7 +637,7 @@ authors:
     twitter-handle: mttinning
     picture: picture.jpg
   mwallace:
-    author-summary: "<p>Senior UX Designer at Scott Logic. I like to talk about user-centered design, usability, and accessibility. When I''m not working I''m doing something creative or playing board games.</p>"
+    author-summary: "<p>Senior UX Designer at Scott Logic. I like to talk about user-centered design, usability, and accessibility. When I'm not working I'm doing something creative or playing board games.</p>"
     name: "Mark Wallace"
     picture: profile.jpeg
   nhemley: