diff --git a/requirements.txt b/requirements.txt
index 4c94813..0a9b682 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-sphinx>=4.2.0
+sphinx>=4.2.0,<5.2.0
 docutils>=0.17.1
\ No newline at end of file
diff --git a/setup.cfg b/setup.cfg
index 73c2515..35ea65f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -30,7 +30,7 @@ zip_safe = False
 include_package_data = True
 packages = trojanzoo_sphinx_theme
 install_requires =
-  sphinx>=4.2.0
+  sphinx>=4.2.0,<5.2.0
   docutils>=0.17.1
 python_requires = >3
 
diff --git a/trojanzoo_sphinx_theme/version.py b/trojanzoo_sphinx_theme/version.py
index 9be6e83..852b710 100644
--- a/trojanzoo_sphinx_theme/version.py
+++ b/trojanzoo_sphinx_theme/version.py
@@ -1,3 +1,3 @@
 #!/usr/bin/env python3
 
-__version__ = '0.1.4'
+__version__ = '0.1.5'