diff --git a/beamerthemeSimple.sty b/beamerthemeSimple.sty
index 01be7ed..728ace4 100644
--- a/beamerthemeSimple.sty
+++ b/beamerthemeSimple.sty
@@ -4,7 +4,9 @@
 \RequirePackage[sfdefault]{FiraSans}
 \RequirePackage{FiraMono} 
 \renewcommand{\rmfamily}{\sffamily}
-\RequirePackage[fakebold]{firamath-otf}
+% \RequirePackage[fakebold]{firamath-otf}
+\usepackage[mathrm=sym]{unicode-math}
+\setmathfont{Fira Math}
 \RequirePackage{xeCJK}
 \setCJKmainfont{Source Han Sans SC}
 
diff --git a/main.pdf b/main.pdf
index 1229b34..179366c 100644
Binary files a/main.pdf and b/main.pdf differ