diff --git a/REQUIREMENTS.txt b/REQUIREMENTS.txt
index 49e2b4b..df46ee1 100644
--- a/REQUIREMENTS.txt
+++ b/REQUIREMENTS.txt
@@ -1,6 +1,6 @@
 # python>=3
 # PIL
-Pillow==2.7
+Pillow==10.0.1
 # PIL  # mock to prevent lint errors
 six
 # yaml
diff --git a/requirements_deps.txt b/requirements_deps.txt
index 59ac09e..7eff868 100644
--- a/requirements_deps.txt
+++ b/requirements_deps.txt
@@ -1,7 +1,7 @@
 # Extra dependencies: Requirements and requirements' requirements, 
 # Listing these here so you can install as many as possible with Conda.
 
-Pillow==2.7
+Pillow==10.0.1
 six
 pyyaml
 numpy
diff --git a/requirements_dev.txt b/requirements_dev.txt
index dcc6c4e..2021468 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -3,7 +3,7 @@
 # python2 should still work but is not actively tested against:
 # python>=3
 # PIL
-Pillow==2.7
+Pillow==10.0.1
 six
 # yaml provided by pyyaml package:
 pyyaml
diff --git a/requirements_no_cairo.txt b/requirements_no_cairo.txt
index 693b07f..eea96fc 100644
--- a/requirements_no_cairo.txt
+++ b/requirements_no_cairo.txt
@@ -1,6 +1,6 @@
 # python>=3
 # PIL
-Pillow==2.7
+Pillow==10.0.1
 six
 # yaml
 pyyaml
diff --git a/setup.py b/setup.py
index baf9804..190b2d9 100644
--- a/setup.py
+++ b/setup.py
@@ -85,7 +85,7 @@
         'pyyaml',       # YAML files
         'svgwrite',     # Composing svg files.
         'six',          # Python2.7 compatability
-        'pillow==2.7',  # Image reading and manipulation.
+        'pillow==10.0.1',  # Image reading and manipulation.
         'numpy',        # Adjusting contrast, mostly.
         'cffi',         # Cairo - used to convert SVG files to PNG
         'cairocffi',