diff --git a/beamerthemeSimple.sty b/beamerthemeSimple.sty
index 959fb77..9e80b8d 100644
--- a/beamerthemeSimple.sty
+++ b/beamerthemeSimple.sty
@@ -2,6 +2,7 @@
 %
 % This file may be distributed and/or modified
 % under the LaTeX Project Public License
+\usepackage{libertine}
 \RequirePackage[english]{babel}
 \RequirePackage{fancyhdr}        % header footer
 \RequirePackage{xcolor}
diff --git a/main.pdf b/main.pdf
index 43f8a84..a9e2ce5 100644
Binary files a/main.pdf and b/main.pdf differ