diff --git a/requirements.txt b/requirements.txt
index 89abfdc..8edccd8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ PySide6<6.10
 Pillow>=11.3.0
 psutil>=5.9.5
 requests>=2.31.0
-python-slugify>=1.2.1
+python-slugify>=1.2.1,<9.0.0
 raven>=6.0.0
 packaging>=23.2
 mozjpeg-lossless-optimization>=1.2.0
diff --git a/setup.py b/setup.py
index c1c9297..d818459 100644
--- a/setup.py
+++ b/setup.py
@@ -148,16 +148,15 @@ setuptools.setup(
     },
     packages=['kindlecomicconverter'],
     install_requires=[
-        'pyside6>=6.0.0',
+        'PySide6>=6.0.0',
         'Pillow>=9.3.0',
-        'PyMuPDF>=1.18.0',
         'psutil>=5.9.5',
+        'requests>=2.31.0',
         'python-slugify>=1.2.1,<9.0.0',
         'raven>=6.0.0',
-        'requests>=2.31.0',
-        'mozjpeg-lossless-optimization>=1.1.2',
+        'mozjpeg-lossless-optimization>=1.2.0',
         'natsort>=8.4.0',
-        'distro',
+        'distro>=1.8.0',
         'numpy>=1.22.4',
         'PyMuPDF>=1.16.1',
     ],