diff --git a/lectures/affine_risk_prices.md b/lectures/affine_risk_prices.md
index a05b3e4..0e5e213 100644
--- a/lectures/affine_risk_prices.md
+++ b/lectures/affine_risk_prices.md
@@ -568,8 +568,7 @@ mystnb:
 import matplotlib as mpl  # i18n
 FONTPATH = "fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
-mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
-
+mpl.rcParams['font.family'] = ['Source Han Serif SC', 'DejaVu Sans']  # i18n
 n_max_1f = 60
 maturities_1f = np.arange(1, n_max_1f + 1)
 
diff --git a/lectures/career.md b/lectures/career.md
index 3b4c507..1ecb1f8 100644
--- a/lectures/career.md
+++ b/lectures/career.md
@@ -64,7 +64,7 @@ import matplotlib.pyplot as plt
 import matplotlib as mpl
 FONTPATH = "fonts/SourceHanSerifSC-SemiBold.otf"
 mpl.font_manager.fontManager.addfont(FONTPATH)
-plt.rcParams['font.family'] = ['Source Han Serif SC']
+plt.rcParams['font.family'] = ['Source Han Serif SC', 'DejaVu Sans']
 
 from matplotlib import cm
 from mpl_toolkits.mplot3d.axes3d import Axes3D
diff --git a/lectures/divergence_measures.md b/lectures/divergence_measures.md
index 7b537b9..659a0e9 100644
--- a/lectures/divergence_measures.md
+++ b/lectures/divergence_measures.md
@@ -63,6 +63,10 @@ translation:
 
 ```{code-cell} ipython3
 import matplotlib.pyplot as plt
+import matplotlib as mpl
+FONTPATH = "fonts/SourceHanSerifSC-SemiBold.otf"
+mpl.font_manager.fontManager.addfont(FONTPATH)
+plt.rcParams['font.family'] = ['Source Han Serif SC', 'DejaVu Sans']
 import numpy as np
 from numba import vectorize, jit
 from math import gamma
diff --git a/lectures/jv.md b/lectures/jv.md
index 2efcf36..9192923 100644
--- a/lectures/jv.md
+++ b/lectures/jv.md
@@ -53,6 +53,10 @@ translation:
 from typing import NamedTuple
 
 import matplotlib.pyplot as plt
+import matplotlib as mpl
+FONTPATH = "fonts/SourceHanSerifSC-SemiBold.otf"
+mpl.font_manager.fontManager.addfont(FONTPATH)
+plt.rcParams['font.family'] = ['Source Han Serif SC', 'DejaVu Sans']
 import scipy.stats as stats
 import jax
 import jax.numpy as jnp
diff --git a/lectures/kesten_processes.md b/lectures/kesten_processes.md
index 098b0b7..4d3777e 100644
--- a/lectures/kesten_processes.md
+++ b/lectures/kesten_processes.md
@@ -73,6 +73,10 @@ translation:
 
 ```{code-cell} ipython3
 import matplotlib.pyplot as plt
+import matplotlib as mpl
+FONTPATH = "fonts/SourceHanSerifSC-SemiBold.otf"
+mpl.font_manager.fontManager.addfont(FONTPATH)
+plt.rcParams['font.family'] = ['Source Han Serif SC', 'DejaVu Sans']
 import numpy as np
 import quantecon as qe
 import yfinance as yf