diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5271236b..b95eae2a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,8 +18,6 @@ if(NOT DEFINED QULACS_USE_EXE)
     set(QULACS_USE_EXE ON)
 endif(NOT DEFINED QULACS_USE_EXE)
 
-set(BUILD_SHARED_LIBS ON CACHE BOOL "Build project as a shared library for dynamic linking")
-
 message(STATUS "SKBUILD = ${SKBUILD}")
 message(STATUS "QULACS_USE_TEST = ${QULACS_USE_TEST}")
 
@@ -52,6 +50,7 @@ if(NOT kokkos_fetch_POPULATED)
     message(STATUS "Fetch Kokkos for parallel execution")
     FetchContent_Populate(kokkos_fetch)
     add_subdirectory(${kokkos_fetch_SOURCE_DIR})
+    set_property(TARGET kokkoscore PROPERTY POSITION_INDEPENDENT_CODE ON)
 endif(NOT kokkos_fetch_POPULATED)
 
 # Eigen
@@ -102,6 +101,7 @@ else()
 endif(QULACS_USE_TEST)
 
 add_library(qulacs)
+set_property(TARGET qulacs PROPERTY POSITION_INDEPENDENT_CODE ON)
 
 ### Compiler options ###
 if ((${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU") OR (${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang") OR (${CMAKE_CXX_COMPILER_ID} STREQUAL "AppleClang"))
diff --git a/pyproject.toml b/pyproject.toml
index 797f6c0d..a88581c5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -66,7 +66,3 @@ doc = [
     "ipykernel == 6.17.*",
     "sphinx-autoapi == 2.0.*"
 ]
-
-[tool.setuptools]
-include-package-data = true
-zip-safe = false
diff --git a/python/CMakeLists.txt b/python/CMakeLists.txt
index 146181f1..62242de1 100644
--- a/python/CMakeLists.txt
+++ b/python/CMakeLists.txt
@@ -4,7 +4,6 @@ cmake_minimum_required(VERSION 3.21)
 message(STATUS "Building library for python...")
 
 nanobind_add_module(qulacs_core STABLE_ABI binding.cpp)
-target_link_libraries(qulacs_core PRIVATE Kokkos::kokkos)
-target_link_libraries(qulacs_core PUBLIC qulacs)
+target_link_libraries(qulacs_core PRIVATE qulacs Kokkos::kokkos)
 target_include_directories(qulacs_core PRIVATE ${PROJECT_SOURCE_DIR}/qulacs)
 install(TARGETS qulacs_core LIBRARY DESTINATION qulacs2023)
diff --git a/python/binding.cpp b/python/binding.cpp
index 8f830fa6..ef641fc4 100644
--- a/python/binding.cpp
+++ b/python/binding.cpp
@@ -35,4 +35,6 @@ NB_MODULE(qulacs_core, m) {
     m.def("Haar_random_state",
           static_cast<StateVector (*)(UINT, UINT)>(&StateVector::Haar_random_state));
     m.def("Haar_random_state", static_cast<StateVector (*)(UINT)>(&StateVector::Haar_random_state));
+    m.def("initialize", [] { Kokkos::initialize(); });
+    m.def("finialize", &Kokkos::finalize);
 }