diff --git a/base/proposal.dtx b/base/proposal.dtx
index 88c2f8c..7a39753 100644
--- a/base/proposal.dtx
+++ b/base/proposal.dtx
@@ -643,7 +643,7 @@
 \renewcommand{\familydefault}{\sfdefault}
 \RequirePackage[scaled=.90]{helvet}
 \RequirePackage{textcomp}
-\RequirePackage[hyperref=auto,style=alphabetic,defernumbers=true,backend=bibtex,backref=true,firstinits=true,maxbibnames=6]{biblatex}[2010/11-19]
+\RequirePackage[hyperref=auto,style=alphabetic,defernumbers=true,backend=bibtex,firstinits=true,maxbibnames=6]{biblatex}[2010/11-19]
 \RequirePackage{csquotes}
 \RequirePackage{mdframed}
 %    \end{macrocode}
diff --git a/base/proposal.pdf b/base/proposal.pdf
index aafcb31..a423dd9 100644
Binary files a/base/proposal.pdf and b/base/proposal.pdf differ
diff --git a/base/proposal.sty b/base/proposal.sty
index 2928afa..5c0b50d 100644
--- a/base/proposal.sty
+++ b/base/proposal.sty
@@ -28,7 +28,7 @@
 \renewcommand{\familydefault}{\sfdefault}
 \RequirePackage[scaled=.90]{helvet}
 \RequirePackage{textcomp}
-\RequirePackage[hyperref=auto,style=alphabetic,defernumbers=true,backend=bibtex,backref=true,firstinits=true,maxbibnames=6]{biblatex}[2010/11-19]
+\RequirePackage[hyperref=auto,style=alphabetic,defernumbers=true,backend=bibtex,firstinits=true,maxbibnames=6]{biblatex}[2010/11-19]
 \RequirePackage{csquotes}
 \RequirePackage{mdframed}
 \RequirePackage{pdata}