diff -r 3391a4fc3533 -r d58f8e3e78a5 graphics.sty
--- a/graphics.sty	Fri Jun 01 15:46:34 2018 +0100
+++ b/graphics.sty	Sat Jun 09 21:01:46 2018 +0100
@@ -6,6 +6,7 @@
 \usepackage{graphicx} 
 \usepackage{pgfplots}
 
+\pgfplotsset{compat=1.15}
 
 \newenvironment{bubble}[1][]{%
 \addtolength{\leftmargini}{4mm}%