diff --git a/pyproject.toml b/pyproject.toml
index cdd779d..4cecbd7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ description = "RF Network Analyzer based on the Pluto SDR"
 readme = "README.md"
 requires-python = ">=3"
 # keywords = ["one", "two"]
-license = { text = "MIT License" }
+license = "MIT"
 classifiers = ["Programming Language :: Python :: 3"]
 dependencies = [
   "numpy",
diff --git a/charon_vna/__init__.py b/src/charon_vna/__init__.py
similarity index 100%
rename from charon_vna/__init__.py
rename to src/charon_vna/__init__.py
diff --git a/charon_vna/cli.py b/src/charon_vna/cli.py
similarity index 100%
rename from charon_vna/cli.py
rename to src/charon_vna/cli.py
diff --git a/charon_vna/config_default.json b/src/charon_vna/config_default.json
similarity index 100%
rename from charon_vna/config_default.json
rename to src/charon_vna/config_default.json
diff --git a/charon_vna/config_default.py b/src/charon_vna/config_default.py
similarity index 100%
rename from charon_vna/config_default.py
rename to src/charon_vna/config_default.py
diff --git a/charon_vna/gui.py b/src/charon_vna/gui.py
similarity index 100%
rename from charon_vna/gui.py
rename to src/charon_vna/gui.py
diff --git a/charon_vna/gui_helpers.py b/src/charon_vna/gui_helpers.py
similarity index 100%
rename from charon_vna/gui_helpers.py
rename to src/charon_vna/gui_helpers.py
diff --git a/charon_vna/io_.py b/src/charon_vna/io_.py
similarity index 100%
rename from charon_vna/io_.py
rename to src/charon_vna/io_.py
diff --git a/charon_vna/plots.py b/src/charon_vna/plots.py
similarity index 100%
rename from charon_vna/plots.py
rename to src/charon_vna/plots.py
diff --git a/charon_vna/pluto_example.py b/src/charon_vna/pluto_example.py
similarity index 100%
rename from charon_vna/pluto_example.py
rename to src/charon_vna/pluto_example.py
diff --git a/charon_vna/util.py b/src/charon_vna/util.py
similarity index 100%
rename from charon_vna/util.py
rename to src/charon_vna/util.py
diff --git a/charon_vna/vna.py b/src/charon_vna/vna.py
similarity index 100%
rename from charon_vna/vna.py
rename to src/charon_vna/vna.py
diff --git a/charon_vna/vna_dev.py b/src/charon_vna/vna_dev.py
similarity index 100%
rename from charon_vna/vna_dev.py
rename to src/charon_vna/vna_dev.py