diff --git a/trustworthy-ai.tex b/trustworthy-ai.tex
index e797483..4fdd386 100644
--- a/trustworthy-ai.tex
+++ b/trustworthy-ai.tex
@@ -3,6 +3,7 @@
 \usepackage{graphicx}
 \usepackage[backend=biber,style=numeric]{biblatex}
 \usepackage{hyperref}
+\usepackage{amsmath}
 
 \hypersetup{
     colorlinks=true,