diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 7e284e4..b5d5685 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3.8.2
+current_version = 3.9.4
 
 [bumpversion:file:./check-matplotlib-version.py]
 search = __version__ == '{current_version}'
@@ -9,10 +9,6 @@ replace = __version__ == '{new_version}'
 search = Matplotlib {current_version}
 replace = Matplotlib {new_version}
 
-[bumpversion:file:./Makefile]
-search = v{current_version}
-replace = v{new_version}
-
 [bumpversion:file:./cheatsheets.tex]
 search = Version {current_version}
 replace = Version {new_version}
diff --git a/cheatsheets.tex b/cheatsheets.tex
index c6a5257..ded4174 100644
--- a/cheatsheets.tex
+++ b/cheatsheets.tex
@@ -264,7 +264,7 @@
 \begin{multicols*}{5}
   \begin{overpic}[width=\columnwidth,tics=6,trim=12 6 18 6, clip]{logo2.png}
     \put (16.5,1.5) {\scriptsize\RobotoCon \textcolor[HTML]{11557c}{Cheat sheet}}
-    \put (80,1.5) {\tiny\Roboto \textcolor[HTML]{11557c}{Version 3.8.2}}
+    \put (80,1.5) {\tiny\Roboto \textcolor[HTML]{11557c}{Version 3.9.4}}
    \end{overpic}
   %\textbf{\Large \RobotoCon Matplotlib 3.2 cheat sheet}\\
   %{\ttfamily https://matplotlib.org} \hfill CC-BY 4.0
diff --git a/check-matplotlib-version.py b/check-matplotlib-version.py
index 1430429..1c152ae 100755
--- a/check-matplotlib-version.py
+++ b/check-matplotlib-version.py
@@ -2,4 +2,4 @@
 import matplotlib as mpl
 
 
-assert mpl.__version__ == '3.8.2'
+assert mpl.__version__ == '3.9.4'
diff --git a/handout-beginner.tex b/handout-beginner.tex
index 58be029..870ddfe 100644
--- a/handout-beginner.tex
+++ b/handout-beginner.tex
@@ -297,7 +297,7 @@ \subsection*{\rmfamily Save \mdseries (bitmap or vector format)}
 \vfill
 %
 {\scriptsize
-  Matplotlib 3.8.2 handout for beginners.
+  Matplotlib 3.9.4 handout for beginners.
   Copyright (c) 2021 Matplotlib Development Team.
   Released under a CC-BY 4.0 International License.
   Supported by NumFOCUS.
diff --git a/handout-intermediate.tex b/handout-intermediate.tex
index 93d7b68..0663fba 100644
--- a/handout-intermediate.tex
+++ b/handout-intermediate.tex
@@ -198,7 +198,7 @@ \subsection*{\rmfamily Size \& DPI}
 \vfill
 %
 {\scriptsize
-  Matplotlib 3.8.2 handout for intermediate users.
+  Matplotlib 3.9.4 handout for intermediate users.
   Copyright (c) 2021 Matplotlib Development Team.
   Released under a CC-BY 4.0 International License.
   Supported by NumFOCUS.
diff --git a/handout-tips.tex b/handout-tips.tex
index 84ddede..ad97b3e 100644
--- a/handout-tips.tex
+++ b/handout-tips.tex
@@ -243,7 +243,7 @@ \subsection*{\rmfamily Read the documentation}
 \vfill
 %
 {\scriptsize
-  Matplotlib 3.8.2 handout for tips \& tricks.
+  Matplotlib 3.9.4 handout for tips \& tricks.
   Copyright (c) 2021 Matplotlib Development Team.
   Released under a CC-BY 4.0 International License.
   Supported by NumFOCUS.
diff --git a/requirements/requirements.in b/requirements/requirements.in
index 2b1dd17..a92727b 100644
--- a/requirements/requirements.in
+++ b/requirements/requirements.in
@@ -2,14 +2,14 @@ autopep8
 bump2version
 cartopy==0.22.0
 flake8
-matplotlib==3.8.2
+matplotlib==3.9.4
 pillow>=9
 pdfx
 pip-tools
 pre-commit
 scipy
 # Docs
-mpl-sphinx-theme~=3.8.0
+mpl-sphinx-theme~=3.9.0
 pydata-sphinx-theme==0.13.3
 sphinx
 sphinx-design
diff --git a/requirements/requirements.txt b/requirements/requirements.txt
index d157b29..bda1528 100644
--- a/requirements/requirements.txt
+++ b/requirements/requirements.txt
@@ -68,14 +68,14 @@ kiwisolver==1.4.5
     # via matplotlib
 markupsafe==2.1.4
     # via jinja2
-matplotlib==3.8.2
+matplotlib==3.9.4
     # via
     #   -r requirements.in
     #   cartopy
     #   mpl-sphinx-theme
 mccabe==0.7.0
     # via flake8
-mpl-sphinx-theme==3.8.0
+mpl-sphinx-theme==3.9.0
     # via -r requirements.in
 nodeenv==1.8.0
     # via pre-commit