diff --git a/lecturecommon.sty b/lecturecommon.sty
index e72e49a..d542d8f 100644
--- a/lecturecommon.sty
+++ b/lecturecommon.sty
@@ -1,4 +1,4 @@
-\def\filedate{1 July 2016}
+\def\filedate{9 February 2017}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 % Common definitions shared across the various lecture document classes.
@@ -14,11 +14,12 @@
 % v1.2   Switched to "class" instead of "chapter".
 % v1.2.1 Fixed fontspec option clash and made font handling consistent with XML framework.
 % v1.2.2 Fixed incorrect Roman font in math mode.
+% v1.2.3 Switched XeLaTeX fonts to new University standard (Minion Pro + Open Sans).
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 \NeedsTeXFormat{LaTeX2e}[2001/06/01]
-\ProvidesPackage{lecturecommon}[2016/07/01 INFO standard lecture setup v1.2.2]
+\ProvidesPackage{lecturecommon}[2017/02/09 INFO standard lecture setup v1.2.3]
 
 
 % Standard packages common to ALL lecture documents.
@@ -39,8 +40,8 @@
 %   \setmainfont{TeX Gyre Pagella}
 %   \setmathsfont(Latin,Digits){TeX Gyre Pagella}
 %   \setmathrm{TeX Gyre Pagella}
-\setprimaryfont{TeX Gyre Pagella}
-\setsansfont[Scale=MatchUppercase,BoldFont={Gill Sans}]{Gill Sans Light}
+\setprimaryfont{Minion Pro}
+\setsansfont[Scale=MatchUppercase,BoldFont={Open Sans}]{Open Sans Light}
 \setmonofont[Scale=MatchLowercase]{Letter Gothic 12 Pitch}
 
 % Hack to prevent digits in hyperlinks from being set in the main font instead of the mono font.
@@ -78,10 +79,6 @@
 
 \hypersetup{pdfpagemode=UseNone}
 
-% NJS 2011-07-28: Weirdness with XeLaTeX and Hyperref: URLs formatted with
-% \url{} that have numbers in them use monospaced font for the letters and
-% serif font for the numbers?!?!
-
 
 % Standard macros and package configuration common to ALL lecture notes
 % documents.