diff --git a/Wrap/Python/ba_plot.py b/Wrap/Python/ba_plot.py
index e7ed2ff4cfee39cb2df4ae0e7cf79f1284f3a45a..6cf0ae9e097c640b83ad3a3639d06394e43a9f8a 100644
--- a/Wrap/Python/ba_plot.py
+++ b/Wrap/Python/ba_plot.py
@@ -289,7 +289,7 @@ def plot_simulation_result(result, **kwargs):
 Utilities to plot form factors of particles in Born approximation
 """
 
-rc('font', **{'family': 'sans-serif', 'sans-serif': ['Helvetica']})
+# rc('font', **{'family': 'sans-serif', 'sans-serif': ['Helvetica']})
 rc('text', usetex=True)
 rc('image', cmap='inferno')
 # mpl.rcParams['image.interpolation'] = 'none'
diff --git a/hugo/content/installation/building/unix/third-party.md b/hugo/content/installation/building/unix/third-party.md
index 0f87ea08ff6cc6eee232b4d90efd7fc3ad5c29c8..f66350b30961ea2f17c38a150ae55db7e17b08d0 100644
--- a/hugo/content/installation/building/unix/third-party.md
+++ b/hugo/content/installation/building/unix/third-party.md
@@ -43,7 +43,7 @@ Install required packages:
 $ sudo apt-get install build-essential git cmake \
   libgsl-dev libeigen3-dev libfftw3-dev \
   python3 python3-dev python3-numpy python3-matplotlib \
-  libtiff5-dev libboost-dev
+  dvipng libtiff5-dev libboost-dev
   libboost-program-options-dev libboost-regex-dev \
   libboost-iostreams-dev \
   qt5-default libqt5designercomponents5 qttools5-dev \