diff --git a/changelog/112.breaking.rst b/changelog/112.breaking.rst
new file mode 100644
index 0000000..28b0e40
--- /dev/null
+++ b/changelog/112.breaking.rst
@@ -0,0 +1 @@
+Increased the minimum required version of ``sunpy``  to v6.0.0.
diff --git a/setup.cfg b/setup.cfg
index 2a35b0f..46e22c8 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -34,7 +34,7 @@ include_package_data = True
 setup_requires =
   setuptools_scm
 install_requires =
-  sunpy[net]>=5.0.0
+  sunpy[net]>=6.0.0
   numpy
   matplotlib
   scipy
@@ -54,8 +54,6 @@ docs =
   sphinx-gallery
   sphinx
   sunpy-sphinx-theme
-  # Remove next line when fixed in towncrier; see https://github.com/twisted/towncrier/issues/528
-  importlib-resources<6
 
 [options.package_data]
 radiospectra = data/*