diff --git a/rife_ncnn_vulkan_python/CMakeLists.txt b/rife_ncnn_vulkan_python/CMakeLists.txt
index 91451f9..7917d30 100644
--- a/rife_ncnn_vulkan_python/CMakeLists.txt
+++ b/rife_ncnn_vulkan_python/CMakeLists.txt
@@ -16,10 +16,18 @@ find_package(OpenMP)
 find_package(Vulkan REQUIRED)
 
 # Python
-if(${CMAKE_VERSION} VERSION_LESS "3.15")
-  find_package(Python REQUIRED)
+if (DEFINED PY_VERSION)
+  if (${CMAKE_VERSION} VERSION_LESS "3.15")
+  	find_package(Python ${PY_VERSION} EXACT REQUIRED)
+  else()
+   	find_package(Python ${PY_VERSION} EXACT REQUIRED COMPONENTS Development)
+  endif()
 else()
-  find_package(Python REQUIRED COMPONENTS Development)
+  if (${CMAKE_VERSION} VERSION_LESS "3.15")
+    find_package(Python REQUIRED)
+  else()
+    find_package(Python REQUIRED COMPONENTS Development)
+  endif()
 endif()
 
 # SWIG
diff --git a/setup.py b/setup.py
index e509ccc..725bce6 100644
--- a/setup.py
+++ b/setup.py
@@ -80,6 +80,11 @@ def download_models() -> None:
     # remove the temporary files/dirs
     rife_ncnn_vulkan_zip.unlink()
 
+cmake_flags = [
+    "-DBUILD_SHARED_LIBS:BOOL=OFF",
+    "-DCALL_FROM_SETUP_PY:BOOL=ON",
+]
+cmake_flags.extend(os.environ.get("CMAKE_FLAGS", "").split())
 
 # when building bdist wheels/installing the package
 if sys.argv[1] == "bdist_wheel":
@@ -97,10 +102,7 @@ def download_models() -> None:
             install_prefix="rife_ncnn_vulkan_python",
             write_top_level_init="from .rife_ncnn_vulkan import Rife, RIFE, wrapped",
             source_dir=str(pathlib.Path(__file__).parent / "rife_ncnn_vulkan_python"),
-            cmake_configure_options=[
-                "-DBUILD_SHARED_LIBS:BOOL=OFF",
-                "-DCALL_FROM_SETUP_PY:BOOL=ON",
-            ],
+            cmake_configure_options=cmake_flags,
         )
     ],
     cmdclass={"build_ext": cmake_build_extension.BuildExtension},