diff --git a/chapter13.tex b/chapter13.tex
index c523bf8..7afdbf3 100644
--- a/chapter13.tex
+++ b/chapter13.tex
@@ -723,9 +723,9 @@ the minimum distances between any two nodes:
  & 1 & 2 & 3 & 4 & 5 \\
 \hline
 1 & 0 & 5 & 7 & 3 & 1 \\
-2 & 5 & 0 & 2 & 9 & 6 \\
+2 & 5 & 0 & 2 & 8 & 6 \\
 3 & 7 & 2 & 0 & 7 & 8 \\
-4 & 3 & 9 & 7 & 0 & 2 \\
+4 & 3 & 8 & 7 & 0 & 2 \\
 5 & 1 & 6 & 8 & 2 & 0 \\
 \end{tabular}
 \end{center}