diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index 272ae51..f0d484e 100644
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -1,8 +1,8 @@
 Release notes
 =============
 
-3.4.0b1
-~~~~~~~
+3.4.0
+~~~~~
 
 Major improvements:
 
diff --git a/pyproject.toml b/pyproject.toml
index f43d457..a007d1a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "pynmrstar"
-version = "3.4.0b1"
+version = "3.4.0"
 description = "PyNMR-STAR provides tools for reading, writing, modifying, and interacting with NMR-STAR files. Maintained by the BMRB."
 readme = "README.rst"
 requires-python = ">3.7"
@@ -41,9 +41,7 @@ dependencies = [
 [project.urls]
 Homepage = "https://github.com/bmrb-io/PyNMRSTAR"
 
-[tool.setuptools]
-packages = ["pynmrstar"]
-package-data = {pynmrstar = ["reference_files/schema.csv", "reference_files/comments.str", "reference_files/data_types.csv"]}
-
 [tool.maturin]
 module-name = "pynmrstar_parser"
+python-packages = ["pynmrstar"]
+exclude = ["pynmrstar/unit_tests/**"]