diff --git a/CMakeLists.txt b/CMakeLists.txt
index 02a93d5..80b1743 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -42,7 +42,6 @@ ENDIF(BUILD_PYTHON)
 
 MESSAGE(STATUS "Using the target ${CosmoTool_local} to build python module")
 
-find_package(ZLIB)
 find_library(ZLIB_LIBRARY z)
 find_library(DL_LIBRARY dl)
 find_library(RT_LIBRARY rt)
@@ -83,7 +82,7 @@ SET(CPACK_PACKAGE_VERSION_MINOR "3")
 SET(CPACK_PACKAGE_VERSION_PATCH "4${EXTRA_VERSION}")
 SET(CPACK_PACKAGE_INSTALL_DIRECTORY "CosmoToolbox-${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}")
 SET(CPACK_STRIP_FILES "lib/libCosmoTool.so")
-SET(CPACK_SOURCE_IGNORE_FILES
+SET(CPACK_SOURCE_IGNORE_FILES 
 "/CVS/;/\\\\.git/;/\\\\.svn/;\\\\.swp$;\\\\.#;/#;.*~;cscope.*;/CMakeFiles/;.*\\\\.cmake;Makefile")
 
 add_subdirectory(src)
diff --git a/pyproject.toml b/pyproject.toml
index 7a031e7..32826dd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,3 @@
 requires = ["setuptools","wheel","cython"]
 build-backend = "setuptools.build_meta"
 
-
-[tool.towncrier]
-directory = "changes"
-