diff --git a/Dockerfile b/Dockerfile
index d0e406e..9a0cf0e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,8 @@ RUN apt-get update && \
         texlive-latex-base \
         texlive-latex-base \
         texlive-fonts-recommended \
-        texlive-latex-extra
+        texlive-latex-extra \
+        lmodern
 WORKDIR /app
 COPY ./requirements.txt /app/requirements.txt
 RUN pip install -r requirements.txt