diff --git a/release b/release
index 57d77b3..294528d 100755
--- a/release
+++ b/release
@@ -53,6 +53,9 @@ fi
 # Refresh sample document
 
 pdflatex sample-handout >  refresh-sample.log
+bibtex sample-handout   >> refresh-sample.log
+pdflatex sample-handout >> refresh-sample.log
+pdflatex sample-handout >> refresh-sample.log
 rm -f sample-handout.{aux,log,out} refresh-sample.log
 
 # Make bundle