diff --git a/setup.py b/setup.py
index ed93e3c..710c447 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 from distutils.sysconfig import get_python_inc
 from pybind11.setup_helpers import Pybind11Extension, build_ext
 
-__version__ = "4.0.0"
+__version__ = "4.0.1"
 
 include_dirs = [get_python_inc(), 'pybind11/include', 'SEAL/native/src', 'SEAL/build/native/src']
 
diff --git a/src/wrapper.cpp b/src/wrapper.cpp
index aaef51d..050f049 100644
--- a/src/wrapper.cpp
+++ b/src/wrapper.cpp
@@ -14,7 +14,7 @@ PYBIND11_MAKE_OPAQUE(std::vector<std::int64_t>);
 PYBIND11_MODULE(seal, m)
 {
     m.doc() = "Microsoft SEAL for Python, from https://github.com/Huelse/SEAL-Python";
-    m.attr("__version__")  = "4.0.0";
+    m.attr("__version__")  = "4.0.1";
 
     py::class_<DesiloCustomMemoryManager>(m, "DesiloCustomMemoryManager")
         .def(py::init<>())