diff --git a/CHANGES.md b/CHANGES.md
index 2c2b487..d172be2 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,8 @@
+### 1.1.2 (2024-12-11) ###
+
+Bugfixes:
+- Drop Cython-generated .c/.cpp files from the sdist
+
 ### 1.1.1 (2024-12-10) ###
 
 Bugfixes:
diff --git a/MANIFEST.in b/MANIFEST.in
index a27cd4a..3b02136 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,8 +1,8 @@
-include CHANGES.md
 include README.md
-include requirements.txt
-include requirements_doc.txt
+include CHANGES.md
 include LICENSE
+include pyproject.toml
+include pytest.ini
 
 graft tests
 graft doc
@@ -11,6 +11,8 @@ prune doc/_templates
 
 global-include *.pyx
 global-include *.pxd
+global-exclude *.c
+global-exclude *.cpp
 
 global-exclude __pycache__/*
 global-exclude *.so
diff --git a/pairtools/__init__.py b/pairtools/__init__.py
index 3d0bded..a4336e5 100644
--- a/pairtools/__init__.py
+++ b/pairtools/__init__.py
@@ -10,6 +10,6 @@
 
 """
 
-__version__ = "1.1.1"
+__version__ = "1.1.2"
 
 # from . import lib
diff --git a/setup.py b/setup.py
index 761b415..a765afe 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@
     from Cython.Distutils import build_ext as _build_ext
     from Cython.Build import cythonize
 except ImportError:
-    raise ImportError('Cython is required to build the extension modules.')
+    raise ImportError('Cython is now required to build the extension modules.')
 
 
 def _read(*parts, **kwargs):